The Screw,close Tolerance, cataloged under National Stock Number 5305-01-601-7772, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-601-7772 |
| Primary Part Number | HT4032V4-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Fastener Length | 0.715 INCHES NOMINAL IN |
| Thread Length | 0.403 INCHES NOMINAL IN |
| Material Document and Classification | NAS 621 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.312 INCHES NOMINAL IN |
| Grip Diameter | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.362 INCHES MINIMUM 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 |
|---|---|
| HT4032V4-5 | Hi-Shear Corporation (USA) |
| HT4032V4-5 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| HT4032V4-5 | 5/2 Secondary reference U.S. Government activity |
| HT4032V4-5 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-601-7772 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-601-7772 has 2 manufacturer part numbers on file: HT4032V4-5 (Hi-Shear Corporation), HT4032V4-5 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for HT4032V4-5: Fastener Length: 0.715 INCHES NOMINAL IN; Thread Length: 0.403 INCHES NOMINAL IN; Material Document and Classification: NAS 621 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL; Single Shear Strength: ERR-060. 16 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.