The Thumbscrew, cataloged under National Stock Number 5305-01-353-6878, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-353-6878 |
| Primary Part Number | 5548129 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.260 INCHES NOMINAL IN |
| Fastener Length | 5.120 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Nonstandard Thread Pitch Diameter | +2.2250 TO 2.5050 INCHES IN |
| Color | BLACK OVERALL |
| Surface Treatment | DICHROMATE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Thread Series Designator | BUTTRESS |
| Head Diameter | 3.620 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 |
|---|---|
| 5548129 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5305-01-353-6878 is a Thumbscrew, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-353-6878 has 1 manufacturer part number on file: 5548129 (Naval Sea Systems Command).
Key specifications for 5548129: Head Height: 0.260 INCHES NOMINAL IN; Fastener Length: 5.120 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Head Style: KNURLED NO. 1. 11 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.