Product Details | HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-01-387-0391 A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: BH005295, BH00529-5, KFN5565, KFN556-5, 5310-01-387-0391, 01-387-0391, 5310013870391, 013870391

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 24 FEB 1994 01-387-0391

Drawings & Photos | NSN 5310-01-387-0391


Demand History | NSN 5310-01-387-0391

Part Number Request Date QTY Origin
5310-01-387-0391 2023-10-277 20 GR
5310-01-387-0391 2014-10-295 2011 DIBBS
5310-01-387-0391 2014-08-230 800 DIBBS
5310-01-387-0391 2014-08-217 800 DIBBS
5310-01-387-0391 2014-05-141 1700 DIBBS
5310-01-387-0391 2014-04-113 212 DIBBS
5310-01-387-0391 2014-01-15 443 DIBBS
5310-01-387-0391 2013-10-299 281 DIBBS
5310-01-387-0391 2013-10-283 281 DIBBS

Cross Reference | NSN 5310-01-387-0391

Part Number Cage Code Manufacturer
BH00529-5 27238 BRISTOL INDUSTRIES
KFN556-5 15653 ALCOA GLOBAL FASTENERS, INC.
KFN556-5 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
KFN556-5 27238 BRISTOL INDUSTRIES
KFN556-5 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
KFN556-5 97928 HUCK INTL INC

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Technical Data | NSN 5310-01-387-0391

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.312 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 8740 OR STEEL COMP E4340 NUT PLASTIC POLYTETRAFLUOROETHYLENE SEAL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE NUT MIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE SEAL
SURFACE TREATMENT CADMIUM AND CHROMATE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE NUT
HARDNESS RATING 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
NUT STYLE A294 HEXAGON
WASHER OUTSIDE DIAMETER 0.636 INCHES MAXIMUM
OVERALL HEIGHT 0.465 INCHES MAXIMUM
WASHER THICKNESS 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
LUBRICATION SOLUBLE LUBRICANT
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 5310-01-387-0391

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:AItem 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:0Represents 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 093490 BOLT/NUT/SCREW/CLIPS/FASTENER/ETC
Less than car load rating
Less than truck load rating U 50.0
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 5310-01-387-0391

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.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
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
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
EA : Each