The Thumbscrew, cataloged under National Stock Number 5305-01-656-3338, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army. Government technical data includes 11 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 | 5305-01-656-3338 |
| Primary Part Number | 19E2400929 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
| Status | ACTIVE |
| Head Height | 0.63 INCHES NOMINAL IN |
| Fastener Length | 1.38 INCHES NOMINAL IN |
| Thread Length | 0.75 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.25 INCHES IN |
| Head Style | KNURLED NO. 2 |
| Point Style | POINTLESS |
| Surface Treatment | OXIDE FILM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Head Diameter | 1.0 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 |
|---|---|
| 19E2400929 PRIMARY | Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army (USA) |
NSN 5305-01-656-3338 is a Thumbscrew, manufactured by Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-656-3338 has 1 manufacturer part number on file: 19E2400929 (Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army).
Key specifications for 19E2400929: Head Height: 0.63 INCHES NOMINAL IN; Fastener Length: 1.38 INCHES NOMINAL IN; Thread Length: 0.75 INCHES NOMINAL IN; Nominal Thread Diameter: 0.25 INCHES IN. 11 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.