The Screw,machine, cataloged under National Stock Number 5305-01-371-1772, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-371-1772 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.417 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 3 TYPE AND 4C STYLE |
| Screw Material | STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1042 OR STEEL COMP 1045 OR STEEL COMP 1046 OR STEEL COMP 1548 OR STEEL COMP 1049 OR STEEL COMP 1050 |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.292 INCHES MINIMUM AND 0.313 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 |
|---|---|
| 0.190X10UNC-2AX0.5IN. | 3/1 Design control — primary reference U.S. Government activity |
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-371-1772 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-371-2419. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-371-1772: Head Height: 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Screw Surface Treatment: ZINC; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.417 INCHES MINIMUM AND 0.500 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.