The Screw,close Tolerance, cataloged under National Stock Number 5305-01-580-0802, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Atomics Aeronautical Systems, Inc.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-580-0802 |
| Primary Part Number | P04391 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Atomics Aeronautical Systems, Inc. |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Hardness Rating | 55.0 ROCKWELL B NOMINAL OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.250 INCHES NOMINAL IN |
| Minimum Tensile Strength | 70000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | FOUR SPANNER |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.375 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 |
NSN 5305-01-580-0802 is a Screw,close Tolerance, manufactured by General Atomics Aeronautical Systems, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-580-0802 has 2 manufacturer part numbers on file: P04391 (General Atomics Aeronautical Systems, Inc.), 91829A537 (Mcmaster-Carr Supply Co).
Key specifications for P04391: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Thread Length: 0.250 INCHES NOMINAL IN; Hardness Rating: 55.0 ROCKWELL B NOMINAL OVERALL. 16 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.