Product Details | HEXAGON SELF-LOCKING NUT

5310-00-637-8379 A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.

Part Alternates: F1C6401, F1C640-1, 5310-00-637-8379, 00-637-8379, 5310006378379, 006378379

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-637-8379

Drawings & Photos | NSN 5310-00-637-8379


Cross Reference | NSN 5310-00-637-8379

Part Number Cage Code Manufacturer
F1C640-1 85639 KLINCHER LOCKNUT CORP

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Technical Data | NSN 5310-00-637-8379

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.138 INCHES
THREAD QUANTITY PER INCH 40
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.240 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED
LOCKING FEATURE FREE-RUNNING ALL METAL DESIGN
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 5310-00-637-8379

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