The Screw,shoulder, cataloged under National Stock Number 5305-01-047-1071, 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 18 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-047-1071 |
| Primary Part Number | HT4011-5-8 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Fastener Length | 0.951 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Shoulder Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.461 INCHES MINIMUM AND 0.507 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 |
|---|---|
| ST3M506-5-6-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4011-5-8 PRIMARY | Hi-Shear Corporation (USA) |
| HT4011-5-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M506-5-6-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M506-5-8 | The Boeing Company Div Defense (USA) |
| ST3M506-5-6-8 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HT4011-5-8 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| HT4011-5-8 | 5/9 Secondary reference U.S. Government activity |
| HT4011-5-8 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 10317540 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4011-5-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4011-5-8 | 5/9 Secondary reference U.S. Government activity |
| HT4011-5-8 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-047-1071 is a Screw,shoulder, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-047-1071 has 6 manufacturer part numbers on file: ST3M506-5-6-8 (Sps Technologies Ltd, Tj Brooks Division), HT4011-5-8 (Hi-Shear Corporation), HT4011-5-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M506-5-6-8 (Fastener Innovation Technology, Inc. Dba F I T), ST3M506-5-8 (The Boeing Company Div Defense) and 1 more.
Key specifications for HT4011-5-8: Fastener Length: 0.951 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN; Shoulder Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Diameter: 0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER IN. 18 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.