NSN 5310-00-031-0920 MS178284C, MS17828-4C, M178284C

Product Details | HEXAGON SELF-LOCKING NUT

5310-00-031-0920 A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.

Part Alternates: MS178284C, MS17828-4C, M178284C, M17828-4C, H5773302153, H577-3302-153, H861170165, H861-1701-65, H861170214, H861-1702-14, F13588, 09NE040, 09NE420, 111-5486612 ITE, 1115486612ITE, 5001003, 501-7055651 ITEM 55, 5017055651ITEM55, 5361662 ITEM 28, 5361662ITEM28, 54866200032PC3, 5486620-0032PC3, 563640573137, 563-6405731-37, 581-6726888 FIND 7, 5816726888FIND7, 59564053534042, 595-6405353-4042, 5956405353ECMM42, 595-6405353-ECMM-42, 5D304012117, 5D3-04012-117, 60080423, 60-08-0423, 6305-53 PC 41, 630553PC41, 67A4C1, 721706858365, 721-7068583-65, 721706858414, 721-7068584-14, 751-6402502 FIND 7, 75164025027, 751-6402502-7, 7516402502FIND7, 751-6402503 ITEM 7, 75164025037, 751-6402503-7, 7516402503ITEM7, 751-6402601 ITEM 20, 751640260120, 751-6402601-20, 7516402601ITEM20, 751-6402602 FIND 20, 751640260220, 751-6402602-20, 7516402602FIND20, 751-6402603 FIND 20, 7516402603FIND20, 751-6402604 FIND 20, 7516402604FIND20, 751640260519, 751-6402605-19, 751-6402606 FIND 19, 7516402606FIND19, 751-6402607 FIND 19, 7516402607FIND19, 751-6402608 FIND 19, 7516402608FIND19, 8035001003X2XX119, 803-5001003-X2XX-119, 9NE040MONEL, 9NE-040MONEL, 5310-00-031-0920, 00-031-0920, 5310000310920, 218017968, 000310920

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	26 OCT 1972	00-031-0920	05277 ( NUT, SELF-LOCKING, HEXAGON )

Drawings & Photos | NSN 5310-00-031-0920

Part Number	Request Date	QTY	Origin
00310920EY	2025-10-282	2	DIBBS
MS178284C	2025-05-149	220	Canada
MS178284C	2024-07-190	1	US
5310-00-031-0920	2023-07-187	16090	DIBBS
5310-00-031-0920	2023-06-179	16090	DIBBS
5310-00-031-0920	2022-08-220	16809	DIBBS
5310-00-031-0920	2022-07-208	16809	DIBBS
5310-00-031-0920	2022-06-180	16809	DIBBS
5310-00-031-0920	2021-08-224	15197	DIBBS
5310-00-031-0920	2021-08-213	15197	DIBBS
MS17828-4C	2019-03-74	100	Canada
MS178284C	2019-02-41	102	US
MS178284C	2019-02-38	102	US
5310-00-031-0920	2018-09-255	18956	DIBBS
5310-00-031-0920	2018-09-247	18956	DIBBS
MS178284C	2018-07-206	102	United States
MS178284C	2018-01-30	96	United States
MS178284C	2018-01-30	96	United States
5310-00-031-0920	2013-06-165	56	DIBBS
5310-00-031-0920	2012-02-33	102391	DIBBS
5310-00-031-0920	2010-03-90	46373	DIBBS
MS178284C	2009-08-222	300	US
5310-00-031-0920	2008-03-80	29373	DIBBS
5310-00-031-0920	2008-02-60	30438	DIBBS
5310-00-031-0920	2008-02-50	20	US

Cross Reference | NSN 5310-00-031-0920

Part Number	Cage Code	Manufacturer
09NE040	019L2	MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
09NE040	72962	HARVARD INDUSTRIES INC
09NE420	27687	GREER STOP NUT INC.
111-5486612 ITE	43689	HUNTINGTON INGALLS INCORPORATED DIV NEWPORT NEWS
218017968	96169	ELECTRIC BOAT CORPORATION
5001003	53711	NAVAL SEA SYSTEMS COMMAND
501-7055651 ITEM 55	53711	NAVAL SEA SYSTEMS COMMAND
5361662 ITEM 28	53711	NAVAL SEA SYSTEMS COMMAND
5486620-0032PC3	43689	HUNTINGTON INGALLS INCORPORATED DIV NEWPORT NEWS
563-6405731-37	53711	NAVAL SEA SYSTEMS COMMAND
581-6726888 FIND 7	53711	NAVAL SEA SYSTEMS COMMAND
595-6405353-4042	53711	NAVAL SEA SYSTEMS COMMAND
595-6405353-ECMM-42	53711	NAVAL SEA SYSTEMS COMMAND
5D3-04012-117	34712	OLDENBURG GROUP INCORPORATED DBA OLDENBURG - LAKE SHORE
60-08-0423	D9182	BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT
6305-53 PC 41	43689	HUNTINGTON INGALLS INCORPORATED DIV NEWPORT NEWS
67A4C1	33968	CLARK EQUIPMENT COMPANY DBA DOOSAN INFRACORE PORTABLE POWER
721-7068583-65	53711	NAVAL SEA SYSTEMS COMMAND
721-7068584-14	53711	NAVAL SEA SYSTEMS COMMAND
751-6402502 FIND 7	53711	NAVAL SEA SYSTEMS COMMAND
751-6402502-7	53711	NAVAL SEA SYSTEMS COMMAND
751-6402503 ITEM 7	53711	NAVAL SEA SYSTEMS COMMAND
751-6402503-7	53711	NAVAL SEA SYSTEMS COMMAND
751-6402601 ITEM 20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402601-20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402602 FIND 20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402602-20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402603 FIND 20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402604 FIND 20	53711	NAVAL SEA SYSTEMS COMMAND
751-6402605-19	53711	NAVAL SEA SYSTEMS COMMAND
751-6402606 FIND 19	53711	NAVAL SEA SYSTEMS COMMAND
751-6402607 FIND 19	53711	NAVAL SEA SYSTEMS COMMAND
751-6402608 FIND 19	53711	NAVAL SEA SYSTEMS COMMAND
803-5001003-X2XX-119	53711	NAVAL SEA SYSTEMS COMMAND
9NE-040MONEL	72962	HARVARD INDUSTRIES INC
F13588	44185	NMC/WOLLARD, INC.
H577-3302-153	96169	ELECTRIC BOAT CORPORATION
H861-1701-65	96169	ELECTRIC BOAT CORPORATION
H861-1702-14	96169	ELECTRIC BOAT CORPORATION
M17828-4C	D9182	BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT
MS17828-4C	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Related Products | NSN 5310-00-031-0920

5310-00-031-1046, 5310-00-031-1048, 5310-00-031-1120, 5310-00-031-1128, 5310-00-031-1129

Technical Data | NSN 5310-00-031-0920

Characteristic	Specifications
THREAD SERIES	UNC
NOMINAL THREAD SIZE	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT NICKEL ALLOY 400 OR NICKEL ALLOY R-405 NUT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM D44066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
HARDNESS RATING	NOT RATED
NUT STYLE	A12 HEXAGON
NUT HEIGHT	0.240 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
WIDTH ACROSS FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
BEARING SURFACE TYPE	CHAMFERED OR WASHER FACED
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
COUNTERSINK ANGLE	88.0 DEGREES NOMINAL NUT
TEMP RATING	250.0 DEG FAHRENHEIT NOMINAL
III BEARING SURFACE FINISH	125.0 MICROINCHES
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS17828-4C

Restrictions/Controls & Freight Information | NSN 5310-00-031-0920

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	A	Item does not contain precious metal
Criticality Code:	X	The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:	0	Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)

Category	Code	Description
NMF Description	139820	NICKEL BOLTS/NAILS/NUTS/RIVETS ETC
Less than car load rating
Less than truck load rating	M	85.0
Water commodity Code	713	unknown
Originating Activity Code	KZ	Defense Supply Center Philadelphia Philadelphia, PA 19101
Air Dimension Code	A	Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity	B	Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling	Z	No special handling required.
Special Handling Code	9	unknonwn
HAZMAT
Type of Cargo	Z	No special type of cargo code applicable

Management | NSN 5310-00-031-0920

Category	Code	Description
Materiel Category and Inventory Manager	T	Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	Q EA : Each

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation Code	SX	SX:AF SICA RESIDUAL MMAC-OC-ALC
Price Validation	V	The current standard price has been validated. The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range. The item was procured under open competition and under the competitive arena the price is considered fair and reasonable. ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	Q EA : Each

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	5	Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code	B	All CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code	2	ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Physical Category Code	1	Bin
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DM	U.S. Marine Corps
Service Organization	M	U.S. Marine Corps
Reparability	Z	Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	Q EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Special Material ID	VJ	Swimmer support system (S-0417-SW)
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	Q EA : Each