The Screw,shoulder, cataloged under National Stock Number 5305-01-015-5224, 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 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-015-5224 |
| Primary Part Number | 3M105-4-3 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| Head Height | 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Fastener Length | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Shoulder Length | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.245 INCHES MINIMUM AND 0.248 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-H-6875 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.375 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 |
|---|---|
| 3M105-4-3 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5305-01-015-5224 is a Screw,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-015-5224 has 1 manufacturer part number on file: 3M105-4-3 (The Boeing Company Div Defense).
Key specifications for 3M105-4-3: Width Across Flats: 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN; Head Height: 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Fastener Length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Shoulder Length: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM FIRST SHOULDER IN. 19 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.