Product Details | HEXAGON PLAIN NUT

5310-00-637-3634 A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.

Part Alternates: MS162867, MS16286-7, M1222N1X10C20GENN, MILDTL1222, MIL-DTL-1222, MILS1222, MIL-S-1222, P2533, P-253-3, E-172-050-589 NUT, E172050589NUT, F-167-212 PIECE 789, F167212PIECE789, 1608F PIECE 346, 1608FPIECE346, 59A26PC17, 5310-00-637-3634, 00-637-3634, 5310006373634, 006373634

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-637-3634

Drawings & Photos | NSN 5310-00-637-3634


Demand History | NSN 5310-00-637-3634

Part Number Request Date QTY Origin
5310-00-637-3634 2025-12-352 137 DIBBS
5310-00-637-3634 2025-06-174 209 DIBBS
5310-00-637-3634 2025-06-166 209 DIBBS
MILDTL1222 2025-03-72 40 United States
MILDTL1222 2025-02-49 40 United States
MILS1222 2025-01-22 8 United States
MILS1222 2025-01-22 8 United States
5310-00-637-3634 2024-04-107 193 DIBBS
5310-00-637-3634 2024-02-45 278 DIBBS
5310-00-637-3634 2024-02-37 278 DIBBS
MILDTL1222 2023-06-159 12 United States
MS162867 2022-05-124 2 IN
5310-00-637-3634 2015-12-343 1 DIBBS-RFPs
5310-00-637-3634 2015-09-256 342 DIBBS
MILS1222 2015-03-89 3000 BH
5310-00-637-3634 2015-03-70 467 DIBBS
5310-00-637-3634 2014-12-365 1 US
5310-00-637-3634 2014-12-341 437 DIBBS
MILS1222 2014-08-230 1 US
5310-00-637-3634 2014-06-167 419 DIBBS
5310-00-637-3634 2014-03-61 136 DIBBS
5310-00-637-3634 2013-12-343 403 DIBBS
5310-00-637-3634 2013-09-258 68 DIBBS
5310-00-637-3634 2013-07-189 307 DIBBS
MILDTL1222 2013-06-169 59 US
5310-00-637-3634 2013-03-66 335 DIBBS
5310-00-637-3634 2013-01-28 115 DIBBS
5310-00-637-3634 2012-11-324 250 DIBBS
5310-00-637-3634 2012-09-255 74 DIBBS
5310-00-637-3634 2012-08-234 61 DIBBS
5310-00-637-3634 2012-08-226 340 DIBBS
MILS1222 2012-07-209 4 United States
5310-00-637-3634 2012-05-129 460 DIBBS
5310-00-637-3634 2012-03-80 445 DIBBS
MILS1222 2012-03-74 1 US
5310-00-637-3634 2011-05-131 698 DIBBS
MILS1222 2011-02-49 3 US
MILS1222 2011-02-49 4 US
MILS1222 2011-02-49 5 US
MILS1222 2011-02-49 10 US
MILS1222 2011-02-49 18 US
MILS1222 2011-02-49 35 US
MILS1222 2011-02-49 40 US
MILS1222 2011-02-49 42 US
MILS1222 2011-02-49 185 US
MILS1222 2011-02-49 195 US
5310-00-637-3634 2010-08-235 10 DIBBS
MS162867 2009-05-146 12550 US
5310-00-637-3634 2009-04-112 502 DIBBS

Cross Reference | NSN 5310-00-637-3634

Part Number Cage Code Manufacturer
1608F PIECE 346 05073 BABCOCK & WILCOX POWER GENERATION GROUP, INC.
59A26PC17 53353 LENSCLEAN INC
E-172-050-589 NUT 11440 ALSTOM POWER INC.
F-167-212 PIECE 789 11440 ALSTOM POWER INC.
M1222N1X10C20GENN 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-DTL-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MS16286-7 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
P-253-3 D9182 BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT

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Technical Data | NSN 5310-00-637-3634

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.625 INCHES
THREAD QUANTITY PER INCH 11
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A194,GRADE 4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.9220 INCHES MINIMUM AND 0.9875 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED OR WASHER FACED
TEMP RATING 1000.0 DEG FAHRENHEIT NOMINAL
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND A STYLE AND 4 GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222
MANUFACTURERS CODE 96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS16286-7

Restrictions/Controls & Freight Information | NSN 5310-00-637-3634

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature 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 5310-00-637-3634

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX 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 SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
PG : Package
Category Code Description
Budget Code9 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 CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Price ValidationV 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 SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
PG : Package
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
PG : Package