The Screw,shoulder, cataloged under National Stock Number 5305-01-628-4115, 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 13 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 | 5305-01-628-4115 |
| Primary Part Number | NASM51576-31 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
| Status | ACTIVE |
| Width Across Flats | 0.1560 INCHES NOMINAL IN |
| Head Height | 0.1875 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN |
| Fastener Length | 1.9063 INCHES NOMINAL IN |
| Thread Length | 0.4063 INCHES MINIMUM AND 0.4687 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.4688 INCHES MINIMUM AND 0.5312 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 |
|---|---|
| NASM51576-31 PRIMARY | Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army (USA) |
NSN 5305-01-628-4115 is a Screw,shoulder, manufactured by Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-628-4115 has 1 manufacturer part number on file: NASM51576-31 (Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army).
Key specifications for NASM51576-31: Width Across Flats: 0.1560 INCHES NOMINAL IN; Head Height: 0.1875 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN; Fastener Length: 1.9063 INCHES NOMINAL IN; Thread Length: 0.4063 INCHES MINIMUM AND 0.4687 INCHES MAXIMUM IN. 13 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.