The Screw,shoulder, cataloged under National Stock Number 5305-01-237-4178, 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 17 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-237-4178 |
| Primary Part Number | HT4059V3-11D |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Head Height | 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Fastener Length | 1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Shoulder Length | 0.6467 INCHES MINIMUM AND 0.6487 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| 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 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.338 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 |
| Part Number | Manufacturer |
|---|---|
| HT4059V3-11D | Huck International, Inc (USA) |
| HT4059V3-11D | Howmet Global Fastening Systems Inc (USA) |
| HT4059V3-11D PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4059V3-11D PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4059V3-11 | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
| HT4059V3-11D | 5/2 Secondary reference U.S. Government activity |
| HT4059V3-11D | 5/9 Secondary reference U.S. Government activity |
| HT4059V3-11 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HT4059V3-11D | 5/9 Secondary reference U.S. Government activity |
| HT4059V3-11 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HT4059V3-11 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HT4059V3-11 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5305-01-237-4178 is a Screw,shoulder, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-237-4178 has 4 manufacturer part numbers on file: HT4059V3-11D (Huck International, Inc), HT4059V3-11D (Howmet Global Fastening Systems Inc), HT4059V3-11D (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4059V3-11D (Hi-Shear Corporation).
Key specifications for HT4059V3-11D: Head Height: 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN; Fastener Length: 1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN; Shoulder Length: 0.6467 INCHES MINIMUM AND 0.6487 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM FIRST SHOULDER IN. 17 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.