Product Details | HEXAGON PLAIN NUT

5310-00-639-7535 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: FFB571TYPEA2, 5310-00-639-7535, 00-639-7535, 5310006397535, 006397535

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-639-7535

Drawings & Photos | NSN 5310-00-639-7535


Cross Reference | NSN 5310-00-639-7535

Part Number Cage Code Manufacturer
FFB571TYPEA2 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5310-00-639-7535

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.438 INCHES
THREAD QUANTITY PER INCH 14
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
SURFACE TREATMENT CADMIUM OR ZINC OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.376 INCHES NOMINAL
WIDTH ACROSS FLATS 0.750 INCHES NOMINAL
BEARING SURFACE TYPE WASHER FACED
TEMP RATING NOT RATED
NONDEFINITIVE SPEC/STD DATA A2 TYPE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB571TYPEA2

Restrictions/Controls & Freight Information | NSN 5310-00-639-7535

Category Code Description
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.
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 U 50
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