The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-281-8231, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-281-8231 |
| Primary Part Number | 7001668 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.281 INCHES NOMINAL IN |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY DRILLED HOLE |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | II TYPE AND 10P STYLE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7001668 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 9409133 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 2X32 | 5/9 Secondary reference Kaitlin Corp |
| 5278D | 5/9 Secondary reference Kaitlin Corp |
| 243633 | 5/9 Secondary reference Brockway Motor Trucks Div of Mack Trucks Inc |
| 141266H | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| S278D | 5/9 Secondary reference Corbitt Co Inc |
| 2X32 | 5/9 Secondary reference Corbitt Co Inc |
NSN 5305-00-281-8231 is a Screw,cap,hexagon Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-281-8231 has 2 manufacturer part numbers on file: 7001668 (U S Army Tank Automotive Command Amsta-Im-Mm), 9409133 (General Motors Corp).
4 possible matches (shared part number, not a government interchangeability claim): 5340-01-017-4192, 4820-01-160-9599, 5935-01-220-6552. Verify interchangeability with system specifications before substitution.
Key specifications for 7001668: Head Height: 0.281 INCHES NOMINAL IN; Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL IN; Hole Configuration Style: HEXAGON FLATS. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.