The Screw,shoulder, cataloged under National Stock Number 5305-01-075-7087, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-075-7087 |
| Primary Part Number | ST3M496-5-6 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 0.826 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN |
| Shoulder Length | 0.249 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.327 INCHES MINIMUM AND 0.328 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 | 23-112,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| 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 | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.625 INCHES MINIMUM AND 0.635 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 |
|---|---|
| 11913-5-6 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M496-5-6 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4008-5-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4008-5-6 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4008-5-6 | 5/9 Secondary reference U.S. Government activity |
| HT4008-5-6 | 5/2 Secondary reference U.S. Government activity |
| HT4008-5-6 | 5/2 Secondary reference U.S. Government activity |
| HT4008-5-6 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-075-7087 is a Screw,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-075-7087 has 4 manufacturer part numbers on file: 11913-5-6 (Reid Products Inc. Dba Reid Products Inc), ST3M496-5-6 (The Boeing Company Div Defense), HT4008-5-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4008-5-6 (Hi-Shear Corporation).
Key specifications for ST3M496-5-6: Fastener Length: 0.826 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN; Shoulder Length: 0.249 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.327 INCHES MINIMUM AND 0.328 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN. 16 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.