The Thumbscrew, cataloged under National Stock Number 5305-01-339-0895, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-339-0895 |
| Primary Part Number | A5495995 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 9.5 MILLIMETERS NOMINAL MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 13.5 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 4.5 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | KNURLED NO. 2 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | M |
| Head Diameter | 12.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| A5495995 | Raytheon Company (USA) |
| A5495995 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| A5495995 | 5/9 Secondary reference Translant Inc a Joint Venture |
| 5495995 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-339-0895 is a Thumbscrew, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-339-0895 has 2 manufacturer part numbers on file: A5495995 (Raytheon Company), A5495995 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-407-7166. Verify interchangeability with system specifications before substitution.
Key specifications for A5495995: Head Height: 9.5 MILLIMETERS NOMINAL MM; External Thread Tolerance Class: 6G G; Fastener Length: 13.5 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.