The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-3921, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-3921 |
| Primary Part Number | MS35308-357 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use |
| Status | CANCELLED |
| Head Height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Thread Length | 0.625 INCHES MAXIMUM IN |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Series Designator | UNF |
| Surface Treatment | PASSIVATE OVERALL |
| Head Style | HEXAGON |
| Thread Quantity Per Inch | 24 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| P1257 | Bae Systems Land & Armaments L.p. (USA) |
| 213921 | General Motors Corp (USA) |
| NASM35308 | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| 213921 | General Motors Llc Dba General Motors Llc (USA) |
| MS35308-357 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| FF-S-85 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| MS35308-357 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 245911 | Sinclair Technologies Inc. (CAN) |
| P1257 | Fmc Corp (USA) |
| P1257 | Amz Alabama Inc. (USA) |
NSN 5305-00-021-3921 is a Screw,cap,hexagon Head, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-021-3921 has 10 cross-referenced part numbers: P1257 (Bae Systems Land & Armaments L.p.), 213921 (General Motors Corp), NASM35308 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 213921 (General Motors Llc Dba General Motors Llc), MS35308-357 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 5 more.
There are 6 known substitutes for 5305-00-021-3921: 1430-00-034-7246, 5905-00-483-2136, 5935-01-033-9100 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS35308-357: Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Thread Length: 0.625 INCHES MAXIMUM IN; Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-021-3921 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.