Product Details | HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-01-223-6530 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: BH005294, BH00529-4, KFN5564, KFN556-4, 5310-01-223-6530, 01-223-6530, 5310012236530, 012236530

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 04 JAN 1986 01-223-6530

Drawings & Photos | NSN 5310-01-223-6530


Demand History | NSN 5310-01-223-6530

Part Number Request Date QTY Origin
KFN556-4 2024-03-74 3368 DIBBS
5310-01-223-6530 2023-10-277 40 GR
5310-01-223-6530 2018-01-01 3546 DIBBS
5310-01-223-6530 2017-08-215 1655 DIBBS

Cross Reference | NSN 5310-01-223-6530

Part Number Cage Code Manufacturer
BH00529-4 27238 BRISTOL INDUSTRIES
KFN556-4 12733 VSI CORP SUB OF FAIRCHILD INDUSTRIES INC
KFN556-4 15653 ALCOA GLOBAL FASTENERS, INC.
KFN556-4 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
KFN556-4 27238 BRISTOL INDUSTRIES
KFN556-4 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
KFN556-4 97928 HUCK INTL INC

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Technical Data | NSN 5310-01-223-6530

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 8740 OR STEEL COMP E4340 NUT PLASTIC POLYTETRAFLUOROETHYLENE WASHER
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 WASHER
SURFACE TREATMENT CADMIUM AND CHROMATE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 2 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 0.461 INCHES MAXIMUM
OVERALL HEIGHT 0.380 INCHES MAXIMUM
WASHER THICKNESS 0.107 INCHES MINIMUM AND 0.111 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
TEMP RATING NOT RATED
SPECIAL FEATURES WASHE CETYL ALCOHOL LUBRICANT PER MIL-L-87132,TY 1,GRADE A R,HEXAGON

Restrictions/Controls & Freight Information | NSN 5310-01-223-6530

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.
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 KH Defense Industrial Supply Center
Philadelphia, PA 19111
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 5310-01-223-6530

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 ValidationP The current standard price is the initial negotiated provisioned price.
  • This is the price paid by DoD for the item as the result of price negotiation of the Provisioned Item Order (PIO) or other initial negotiated price.
  • ZOP or Standard Price challenges are permissible but should be supported with adequate justification.
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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
H
EA : Each