The Screw,machine, cataloged under National Stock Number 5305-01-112-4337, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-112-4337 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.704 INCHES MINIMUM AND 0.734 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-N-286 CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-530 FED SPEC ALL MATERIAL RESPONSES |
| Thread Length | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | NICKEL ALLOY K-500 OR COPPER ALLOY 172 OR COPPER ALLOY 173 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.446 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| BACB30BF4K4 | 5/9 Secondary reference U.S. Government activity |
| BACB30LR4U4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-112-4337 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-669-4697. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-112-4337: Screw Surface Treatment: CADMIUM; Fastener Length: 0.704 INCHES MINIMUM AND 0.734 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-N-286 CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-530 FED SPEC ALL MATERIAL RESPONSES; Thread Length: 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN. 15 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.