The Screw,shoulder, cataloged under National Stock Number 5305-01-249-0458, 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 17 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-249-0458 |
| Primary Part Number | HT4060V4-12D |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN |
| Fastener Length | 1.203 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Shoulder Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| 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 | 0.456 INCHES MINIMUM AND 0.508 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 |
|---|---|
| HT4060V4-12D PRIMARY | Hi-Shear Corporation (USA) |
| HT4060V4-12D PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| HT4060V4-12D | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HT4060V4-12D | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| HT4060V4-12D | 3/2 Design control — primary reference U.S. Government activity |
| ST3M851V4-12D | 5/2 Secondary reference U.S. Government activity |
| HT4060V4-12D | 5/9 Secondary reference U.S. Government activity |
| HT4060V4-12D | 5/9 Secondary reference U.S. Government activity |
| ST3M851V4-12D | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5305-01-249-0458 is a Screw,shoulder, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-249-0458 has 2 manufacturer part numbers on file: HT4060V4-12D (Hi-Shear Corporation), HT4060V4-12D (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HT4060V4-12D: Head Height: 0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM IN; Fastener Length: 1.203 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN; Shoulder Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.2802 INCHES MINIMUM AND 0.2807 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.