The Thumbscrew, cataloged under National Stock Number 5305-01-474-3541, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-474-3541 |
| Primary Part Number | A1-32415D |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot |
| Status | ACTIVE |
| Head Height | 0.880 INCHES NOMINAL IN |
| Fastener Length | 2.370 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.328 INCHES NOMINAL IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM THREADS |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | THUMB NO. 3 |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.500 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| A1-32415D PRIMARY | Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot (USA) |
| Reference | Meaning |
|---|---|
| SM-C-415027 | D/9 Drawing number reference only U.S. Government activity |
NSN 5305-01-474-3541 is a Thumbscrew, manufactured by Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-474-3541 has 1 manufacturer part number on file: A1-32415D (Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot).
Key specifications for A1-32415D: Head Height: 0.880 INCHES NOMINAL IN; Fastener Length: 2.370 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.328 INCHES NOMINAL IN. 14 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.