NSN 5310-00-088-0552 MS21044N7, NAS1021N7, AN365720

Product Details | HEXAGON SELF-LOCKING NUT

5310-00-088-0552 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: MS21044N7, NAS1021N7, AN365720, AN365-720, F52NE070U, F52NE-070U, 18D07, 251013, 251-013, 50NE070, 52NE070, 53100880552, 5310-088-0552 , 938.07.17.608, 9380717608, 5310-00-088-0552, 00-088-0552, 5310000880552 , 000880552

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	01 JAN 1963	00-088-0552	05277 ( NUT, SELF-LOCKING, HEXAGON )

Drawings & Photos | NSN 5310-00-088-0552

Part Number	Request Date	QTY	Origin
5310-00-088-0552	2025-10-297	100	OM
5310-00-088-0552	2025-06-160	100	United Arab Emirates
5310-00-088-0552	2024-07-213	15	Taiwan
5310-00-088-0552	2024-07-192	1660	United States
5310-00-088-0552	2024-01-22	164	United Kingdom
5310-00-088-0552	2023-08-241	96	US
5310-00-088-0552	2021-06-161	60	United States
MS21044N7	2020-02-43	10	United States
MS21044N7	2020-02-37	4	United States
MS21044N7	2019-05-143	4	United States
5310-00-088-0552	2018-04-105	9012	DIBBS
5310-00-088-0552	2018-03-70	3897	DIBBS
MS21044N7	2017-08-234	16	LB
5310-00-088-0552	2017-07-192	327	MANUAL
MS21044N7	2017-07-192	327	PK
5310-00-088-0552	2017-07-190	17688	DIBBS
5310-00-088-0552	2017-05-134	7000	DIBBS
5310-00-088-0552	2017-03-65	16972	DIBBS
5310-00-088-0552	2017-01-08	14868	DIBBS
5310-00-088-0552	2016-10-284	7843	DIBBS
5310-00-088-0552	2016-08-235	1	United States
5310-00-088-0552	2016-06-158	14301	DIBBS
5310-00-088-0552	2015-10-278	9838	DIBBS
5310-00-088-0552	2015-09-253	13868	DIBBS
5310-00-088-0552	2015-06-155	9726	DIBBS
MS21044N7	2015-05-141	30	United States
MS21044N7	2015-05-124	20	United States
MS21044N7	2015-03-78	3000	United States
MS21044N7	2015-03-78	3000	United States
MS21044N7	2014-02-52	4	India
MS21044N7	2013-10-283	200	United States
MS21044N7	2013-08-235	25	US
5310-00-088-0552	2013-04-108	180	MANUAL
MS21044N7	2010-11-305	100	US
AN365720	2010-01-12	100	AR
5310-00-088-0552	2009-01-25	205	Malaysia
5310-00-088-0552	2009-01-21	2	Australia
5310-00-088-0552	2006-12-345	1200	United Kingdom

Cross Reference | NSN 5310-00-088-0552

Part Number	Cage Code	Manufacturer
18D07	12603	CLARK EQUIPMENT CO
251-013	72741	DORMAN PRODUCTS, INC. DBA MOTORMITE DIVISION
50NE070	F6137	MESSIER-BUGATTI-DOWTY
52NE070	D9182	BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT
5310-088-0552	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES
5310000880552	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES
938.07.17.608	S4080	PILATUS AIRCRAFT LTD
AN365-720	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
F52NE-070U	019L2	MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA
F52NE-070U	72962	HARVARD INDUSTRIES INC
F52NE070U	08928	ABBOTT-INTERFAST CORP
MS21044N7	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
MS21044N7	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
NAS1021N7	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Related Products | NSN 5310-00-088-0552

5310-00-088-0553, 5310-00-088-0571, 5310-00-088-0578, 5310-00-088-0772, 5310-00-088-0773

Technical Data | NSN 5310-00-088-0552

Characteristic	Specifications
THREAD SERIES	UNJF
NOMINAL THREAD SIZE	0.438 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1035 OR STEEL COMP 11L37 OR STEEL COMP 1213 OR STEEL COMP 12L14 NUT
SURFACE TREATMENT	CADMIUM AND CHROMATE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
HARDNESS RATING	NOT RATED
NUT STYLE	A12 HEXAGON
NUT HEIGHT	0.435 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
WIDTH ACROSS FLATS	0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
BEARING SURFACE TYPE	CHAMFERED OR WASHER FACED
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
COUNTERSINK ANGLE	88.0 DEGREES NOMINAL NUT
LUBRICATION	SOLUBLE LUBRICANT
TEMP RATING	250.0 DEG FAHRENHEIT NOMINAL
SPECIAL FEATURES	WEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATION	FEAT
III BEARING SURFACE FINISH	125.0 MICROINCHES

Restrictions/Controls & Freight Information | NSN 5310-00-088-0552

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:	U	Precious metal type is unknown
Criticality Code:	Y	The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application.

Category	Code	Description
NMF Description	093486	BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating	W	Rating Variable
Water commodity Code	573	unknown
Originating Activity Code	XX
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 5310-00-088-0552

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.
Echelon Identification Code	K	Reserved
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 Content	9	Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
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