Product Details | SQUARE PLAIN NUT

5310-00-208-3041 A nut, flat on top and bottom, having 4 flat sides. 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: FFB571TYPEB2CLASSC, 5310-00-208-3041, 00-208-3041, 5310002083041, 002083041

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-208-3041

Drawings & Photos | NSN 5310-00-208-3041


Cross Reference | NSN 5310-00-208-3041

Part Number Cage Code Manufacturer
FFB571TYPEB2CLASSC 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5310-00-208-3041

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A15 SQUARE
NUT HEIGHT 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.425 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM
BEARING SURFACE TYPE WASHER FACED
TEMP RATING NOT RATED
NONDEFINITIVE SPEC/STD DATA B-2 TYPE AND C CLASS
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB571TYPEB2CLASSC

Restrictions/Controls & Freight Information | NSN 5310-00-208-3041

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