The Screw,shoulder, cataloged under National Stock Number 5305-01-047-0371, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-047-0371 |
| Primary Part Number | HT4011-8-7 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Fastener Length | 1.071 INCHES MINIMUM AND 1.118 INCHES MAXIMUM IN |
| Shoulder Length | 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.531 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.720 INCHES MINIMUM AND 0.787 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 |
|---|---|
| HT4011-8-7 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4011-8-7 | West Coast Aerospace, Inc. (USA) |
| HT4011-8-7 PRIMARY | Huck International, Inc (USA) |
| HT4011-8-7 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4011-8-7 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11919-8-7 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4011-8-7 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4011-8-7 | 5/9 Secondary reference U.S. Government activity |
| HT4011-8-7 | 5/9 Secondary reference U.S. Government activity |
| HT4011-8-7 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M506-8-7 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5305-01-047-0371 is a Screw,shoulder, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-047-0371 has 7 manufacturer part numbers on file: HT4011-8-7 (Fastener Innovation Technology, Inc. Dba F I T), HT4011-8-7 (West Coast Aerospace, Inc.), HT4011-8-7 (Huck International, Inc), HT4011-8-7 (Howmet Global Fastening Systems Inc), HT4011-8-7 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for HT4011-8-7: Fastener Length: 1.071 INCHES MINIMUM AND 1.118 INCHES MAXIMUM IN; Shoulder Length: 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.531 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM 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.