The Thumbscrew, cataloged under National Stock Number 5305-00-734-1998, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Marshall Excelsior Co. Government technical data includes 17 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 | 5305-00-734-1998 |
| Primary Part Number | 82-6124 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Marshall Excelsior Co |
| Status | ACTIVE |
| Head Height | 0.668 INCHES NOMINAL IN |
| Fastener Length | 2.875 INCHES NOMINAL IN |
| Shoulder Length | 1.687 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.375 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | THUMB NO. 4 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Width Between Flats | 1.038 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 82-6124 PRIMARY | Marshall Excelsior Co (USA) |
NSN 5305-00-734-1998 is a Thumbscrew, manufactured by Marshall Excelsior Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-734-1998 has 1 manufacturer part number on file: 82-6124 (Marshall Excelsior Co).
Key specifications for 82-6124: Head Height: 0.668 INCHES NOMINAL IN; Fastener Length: 2.875 INCHES NOMINAL IN; Shoulder Length: 1.687 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.