The Screw,machine, cataloged under National Stock Number 5305-01-277-4328, 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15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-277-4328 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.635 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE AND AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.490 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1790 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | TITANIUM ALLOY UNS R56400 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.339 INCHES MINIMUM AND 0.381 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 |
|---|---|
| NAS1790V3-5L | 3/2 Design control — primary reference U.S. Government activity |
| 10113633 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS663V5HTL | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-277-4328 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2590-01-657-0057. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-277-4328: Fastener Length: 0.635 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE AND AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.490 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES 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.