The Screw,shoulder, cataloged under National Stock Number 5305-01-186-3452, 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 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-186-3452 |
| Primary Part Number | 3M902-C4-15D |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.582 INCHES MINIMUM AND 0.602 INCHES MAXIMUM IN |
| Fastener Length | 1.391 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Shoulder Length | 0.868 INCHES MINIMUM AND 0.890 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| 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 | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.281 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| 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 | 28 |
| Material | STEEL COMP XM-13 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 |
|---|---|
| 3M902-C4-15D PRIMARY | The Boeing Company Div Defense (USA) |
| 11879-C4-15D | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4020-4-15Y PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4020-4-15Y PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4020-4-15Y | 3/9 Design control — primary reference U.S. Government activity |
| HT4020-4-15Y | 3/2 Design control — primary reference U.S. Government activity |
| HT4020-4-15Y | 3/2 Design control — primary reference U.S. Government activity |
| HT4020-4-15Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-186-3452 is a Screw,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-186-3452 has 4 manufacturer part numbers on file: 3M902-C4-15D (The Boeing Company Div Defense), 11879-C4-15D (Reid Products Inc. Dba Reid Products Inc), HT4020-4-15Y (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4020-4-15Y (Hi-Shear Corporation).
Key specifications for 3M902-C4-15D: Head Height: 0.582 INCHES MINIMUM AND 0.602 INCHES MAXIMUM IN; Fastener Length: 1.391 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN; Shoulder Length: 0.868 INCHES MINIMUM AND 0.890 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.