The Thumbscrew, cataloged under National Stock Number 5305-01-045-6596, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Kurz & Root Generator Company, Llc. Government technical data includes 15 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-045-6596 |
| Primary Part Number | 6134-1 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Kurz & Root Generator Company, Llc |
| Status | ACTIVE |
| Head Height | 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Fastener Length | 5.594 INCHES MINIMUM AND 5.656 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 1 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 2 |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.000 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 |
|---|---|
| 6134-1 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
NSN 5305-01-045-6596 is a Thumbscrew, manufactured by Kurz & Root Generator Company, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-045-6596 has 1 manufacturer part number on file: 6134-1 (Kurz & Root Generator Company, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5985-01-082-7498, 4730-01-227-1053. Verify interchangeability with system specifications before substitution.
Key specifications for 6134-1: Head Height: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN; Fastener Length: 5.594 INCHES MINIMUM AND 5.656 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 1 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN. 15 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.