The Screw,shoulder, cataloged under National Stock Number 5305-01-073-7998, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-073-7998 |
| Primary Part Number | 12286201 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.186 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Fastener Length | 0.409 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| Shoulder Length | 0.119 INCHES MINIMUM AND 0.123 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.190 INCHES MINIMUM AND 0.191 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.125 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 62.9 ROCKWELL A MINIMUM AND 69.0 ROCKWELL A MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.276 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 36 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| 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 |
|---|---|
| 12286201 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3-100-169-01 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-073-7998 is a Screw,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-073-7998 has 1 manufacturer part number on file: 12286201 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-406-7700. Verify interchangeability with system specifications before substitution.
Key specifications for 12286201: Head Height: 0.186 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Fastener Length: 0.409 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN; Shoulder Length: 0.119 INCHES MINIMUM AND 0.123 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.190 INCHES MINIMUM AND 0.191 INCHES MAXIMUM FIRST SHOULDER IN. 16 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.