The Screw,shoulder, cataloged under National Stock Number 5305-01-085-1179, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is West Coast Aerospace, Inc.. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-085-1179 |
| Primary Part Number | WC4010-3-16 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | West Coast Aerospace, Inc. |
| Status | ACTIVE |
| Fastener Length | 1.316 INCHES MINIMUM AND 1.346 INCHES MAXIMUM IN |
| Shoulder Length | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.306 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL 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 | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.2966 INCHES MINIMUM AND 0.3016 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 |
|---|---|
| WC4010-3-16 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HT4016-3-16X PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4016-3-16X PRIMARY | Huck International, Inc (USA) |
| HT4016-3-16X PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4016-3-16X PRIMARY | Hi-Shear Corporation (USA) |
| ST3M495-3-16-1 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| HT4016-3-16X | 5/9 Secondary reference U.S. Government activity |
| ST3M495-3-16-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 11911-3-16-1 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| HT4016-3-16X | 3/2 Design control — primary reference U.S. Government activity |
| HT4016-3-16X | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4016-3-16X | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-085-1179 is a Screw,shoulder, manufactured by West Coast Aerospace, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-085-1179 has 6 manufacturer part numbers on file: WC4010-3-16 (West Coast Aerospace, Inc.), HT4016-3-16X (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4016-3-16X (Huck International, Inc), HT4016-3-16X (Howmet Global Fastening Systems Inc), HT4016-3-16X (Hi-Shear Corporation) and 1 more.
Key specifications for WC4010-3-16: Fastener Length: 1.316 INCHES MINIMUM AND 1.346 INCHES MAXIMUM IN; Shoulder Length: 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Diameter: 0.2021 INCHES MINIMUM AND 0.2026 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.