The Screw,drive, cataloged under National Stock Number 5305-01-400-0449, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastbolt Corp. Dba Fastbolt Corp. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-400-0449 |
| Primary Part Number | A3131791-1 |
| Item Name | Screw,drive |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastbolt Corp. Dba Fastbolt Corp |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.189 INCHES IN |
| Head Height | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Fastener Length | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Nonmachine Thread Style | DRIVE SCREW (TYPE U) |
| Head Style | OVAL |
| Pilot Diameter | 0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| Pilot Length | 0.047 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Head Diameter | 0.146 INCHES MINIMUM AND 0.162 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 |
|---|---|
| A3131791-1 | Fastbolt Corp. Dba Fastbolt Corp (USA) |
| Reference | Meaning |
|---|---|
| A3131791-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-400-0449 is a Screw,drive, manufactured by Fastbolt Corp. Dba Fastbolt Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-400-0449 has 1 manufacturer part number on file: A3131791-1 (Fastbolt Corp. Dba Fastbolt Corp).
Key specifications for A3131791-1: Nonmachine Nominal Thread Diameter: 0.189 INCHES IN; Head Height: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN; Fastener Length: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Nonmachine Thread Style: DRIVE SCREW (TYPE U). 9 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.