The Thumbscrew, cataloged under National Stock Number 5305-01-010-7256, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-010-7256 |
| Primary Part Number | 65700-90074-101 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Head Height | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Fastener Length | 3.620 INCHES MINIMUM AND 3.640 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | KNURLED NO. 4 |
| Thread Direction | RIGHT-HAND |
| Point Style | POINTLESS |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM 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 |
|---|---|
| 65700-90074-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5305-01-010-7256 is a Thumbscrew, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-010-7256 has 1 manufacturer part number on file: 65700-90074-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65700-90074-101: Head Height: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Fastener Length: 3.620 INCHES MINIMUM AND 3.640 INCHES MAXIMUM IN; Surface Treatment Document and Classification: SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 3.240 INCHES MINIMUM AND 3.260 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.