The Screw,close Tolerance, cataloged under National Stock Number 5305-01-679-9699, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-679-9699 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OVERALL |
| Head Height | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 1.513 INCHES MINIMUM AND 1.543 INCHES MAXIMUM IN |
| Thread Length | 0.403 INCHES NOMINAL IN |
| Material Document and Classification | AMS4928 OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1578 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.477 INCHES MINIMUM AND 0.492 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 |
|---|---|
| NAS1578V4T18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-679-9699 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-679-9699: Surface Finish: 32.0 MICROINCHES OVERALL; Head Height: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 1.513 INCHES MINIMUM AND 1.543 INCHES MAXIMUM IN; Thread Length: 0.403 INCHES NOMINAL IN. 19 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.