Product Details | HEXAGON EXTENDED WASHER PLAIN NUT

5310-00-631-4031 A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.

Part Alternates: 6314031, 5310-00-631-4031, 00-631-4031, 5310006314031, 006314031

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-631-4031

Drawings & Photos | NSN 5310-00-631-4031


Cross Reference | NSN 5310-00-631-4031

Part Number Cage Code Manufacturer
6314031 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 5310-00-631-4031

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 2.750 INCHES
THREAD QUANTITY PER INCH 12
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 8640 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 269.0 BRINELL STANDARD MINIMUM AND 321.0 BRINELL STANDARD MAXIMUM
NUT STYLE A294 HEXAGON
WASHER OUTSIDE DIAMETER 5.250 INCHES NOMINAL
OVERALL HEIGHT 1.250 INCHES NOMINAL
WASHER THICKNESS 0.375 INCHES NOMINAL
WIDTH ACROSS FLATS 4.500 INCHES NOMINAL
NUT COUNTERBORE DEPTH 0.125 INCHES NOMINAL NUT
COUNTERBORE DIAMETER 3.000 INCHES NOMINAL NUT
TEMP RATING NOT RATED
FEATURES PROVIDED CASEHARDENED

Restrictions/Controls & Freight Information | NSN 5310-00-631-4031

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