The Screw,close Tolerance, cataloged under National Stock Number 5305-01-691-7935, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-691-7935 |
| Primary Part Number | NAS1580V3T15X |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.083 INCHES NOMINAL IN |
| Fastener Length | 1.286 INCHES MINIMUM AND 1.316 INCHES MAXIMUM IN |
| Thread Length | 0.363 INCHES NOMINAL IN |
| Material Document and Classification | 6AL-4V PER AMS4928 OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.1900 INCHES IN |
| Head Style | FLUSH |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1580 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN |
| Grip Diameter | 0.2046 INCHES MINIMUM AND 0.2051 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.3813 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 |
| Part Number | Manufacturer |
|---|---|
| NAS1580V3T15X | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1580V3T15X | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-691-7935 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-691-7935 has 1 manufacturer part number on file: NAS1580V3T15X (Hi-Shear Corporation).
Key specifications for NAS1580V3T15X: Head Height: 0.083 INCHES NOMINAL IN; Fastener Length: 1.286 INCHES MINIMUM AND 1.316 INCHES MAXIMUM IN; Thread Length: 0.363 INCHES NOMINAL IN; Material Document and Classification: 6AL-4V PER AMS4928 OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL V. 18 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.