The Screw,shoulder, cataloged under National Stock Number 5305-01-698-2981, 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 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-698-2981 |
| Primary Part Number | 12341791-5 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Head Height | 0.564 INCHES NOMINAL IN |
| Fastener Length | 1.202 INCHES NOMINAL IN |
| Shoulder Length | 0.667 INCHES MINIMUM AND 0.697 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | 19207 12469218 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.667 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | NAS-21472 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND TIN OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.729 INCHES MINIMUM AND 0.750 INCHES MAXIMUM 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 |
|---|---|
| 12341791-5 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12341791 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5305-01-698-2981 is a Screw,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-698-2981 has 1 manufacturer part number on file: 12341791-5 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12341791-5: Width Across Flats: 0.250 INCHES NOMINAL IN; Head Height: 0.564 INCHES NOMINAL IN; Fastener Length: 1.202 INCHES NOMINAL IN; Shoulder Length: 0.667 INCHES MINIMUM AND 0.697 INCHES MAXIMUM FIRST SHOULDER IN. 19 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.