The Screw,machine, cataloged under National Stock Number 5305-01-167-3291, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-167-3291 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN |
| Fastener Length | 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Length | 0.232 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY 464 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNF |
| Head Diameter | 1.028 INCHES MINIMUM AND 1.073 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 |
| Reference | Meaning |
|---|---|
| S503 AND S502 | 3/9 Design control — primary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| 91-556-1-002 | 5/9 Secondary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| 803-135828 PC4, | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5305PL1290622 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| PSN 91-556-1-02 | 5/9 Secondary reference Grinnell Corp Sub of Tyco Intl Us Inc |
| S503 AND S502 | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
NSN 5305-01-167-3291 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-167-3291: Head Height: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN; Fastener Length: 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Thread Length: 0.232 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.500 INCHES IN. 12 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.