The Screw,machine, cataloged under National Stock Number 5305-01-129-1571, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-129-1571 |
| Primary Part Number | HT5UA-15 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Head Height | 0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 1.406 INCHES NOMINAL IN |
| Thread Length | 0.931 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNF |
| Head Diameter | 0.628 INCHES MINIMUM AND 0.633 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 |
| Part Number | Manufacturer |
|---|---|
| HT403A-5-15 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HT5UA-15 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT5UA15 | Satair A/s (DNK) |
| HT5UA-15 PRIMARY | Hi-Shear Corporation (USA) |
| HT5UA15 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 3M47-5-15 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT403A-5-15 | 5/2 Secondary reference U.S. Government activity |
| 54266-5-15 | 5/2 Secondary reference U.S. Government activity |
| 54266-5-15 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-129-1571 is a Screw,machine, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-129-1571 has 5 manufacturer part numbers on file: HT403A-5-15 (Fairchild Fasteners Europe - Vsd Gmbh), HT5UA-15 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT5UA15 (Satair A/s), HT5UA-15 (Hi-Shear Corporation), HT5UA15 (Fairchild Fasteners Europe - Vsd Gmbh).
Key specifications for HT5UA-15: Head Height: 0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 1.406 INCHES NOMINAL IN; Thread Length: 0.931 INCHES NOMINAL IN. 14 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.