The Thumbscrew, cataloged under National Stock Number 5305-01-138-4700, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Leidos, Inc. Div Cyber and Information Solutions Services. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-138-4700 |
| Primary Part Number | 1325 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Leidos, Inc. Div Cyber and Information Solutions Services |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.438 INCHES NOMINAL IN |
| Shoulder Length | 0.312 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.375 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.750 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 |
|---|---|
| 1325 PRIMARY | Leidos, Inc. Div Cyber and Information Solutions Services (USA) |
| Reference | Meaning |
|---|---|
| 1325 | 5/9 Secondary reference The Boeing Company |
NSN 5305-01-138-4700 is a Thumbscrew, manufactured by Leidos, Inc. Div Cyber and Information Solutions Services, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-138-4700 has 1 manufacturer part number on file: 1325 (Leidos, Inc. Div Cyber and Information Solutions Services).
Key specifications for 1325: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 0.438 INCHES NOMINAL IN; Shoulder Length: 0.312 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.375 INCHES NOMINAL FIRST SHOULDER 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.