The Screw,machine, cataloged under National Stock Number 5305-01-371-4796, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-371-4796 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Length | 0.281 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Features Provided | O RING |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.225 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 |
| Reference | Meaning |
|---|---|
| SFR/4-40X5/16 | 5/2 Secondary reference U.S. Government activity |
| SEELSKREW SFR/4-40X5/16 | 3/2 Design control — primary reference U.S. Government activity |
| 10113775 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 900154-2 | 5/9 Secondary reference Drs Technologies Canada Ltd |
| 900154-2 | C/1 Advisory reference — outside the item-of-supply concept Drs Technologies Canada Ltd |
| 704-211-2 | 5/9 Secondary reference Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine |
NSN 5305-01-371-4796 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-371-4796: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Thread Length: 0.281 INCHES NOMINAL IN; Nominal Thread Diameter: 0.112 INCHES IN. 14 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.