Product Details | HEXAGON PLAIN NUT

5310-00-251-4428 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: C9644, C964-4, 1030834, 1-03083-4, 5310-00-251-4428, 00-251-4428, 5310002514428, 002514428

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 25 JUL 1969 00-251-4428

Drawings & Photos | NSN 5310-00-251-4428


Cross Reference | NSN 5310-00-251-4428

Part Number Cage Code Manufacturer
1-03083-4 00624 EATON CORPORATION DBA AEROSPACE DIV
C964-4 81755 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Technical Data | NSN 5310-00-251-4428

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.438 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL PLASTIC OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.250 INCHES NOMINAL
WIDTH ACROSS FLATS 0.684 INCHES MINIMUM AND 0.691 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED
COUNTERSINK ANGLE 90.0 DEGREES NOMINAL NUT
TEMP RATING NOT RATED
MANUFACTURERS CODE 00624
DESIGN CONTROL REFERENCE 1-03083-4

Restrictions/Controls & Freight Information | NSN 5310-00-251-4428

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 000000 NO NMFC FREIGHT DESCRIPTION
Less than car load rating
Less than truck load rating Z No Rating
Water commodity Code 772 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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