The Screw,shoulder, cataloged under National Stock Number 5305-01-281-9204, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-281-9204 |
| Primary Part Number | 75178-67-V |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Head Height | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Fastener Length | 1.031 INCHES NOMINAL IN |
| Shoulder Length | 0.406 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | ASTM B633,SC-4,TYPE 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.497 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.532 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND PHOSPHATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 1010 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.750 INCHES NOMINAL 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 |
|---|---|
| 75178-67-V PRIMARY | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 67A314B86 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5305-01-281-9204 is a Screw,shoulder, manufactured by Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-281-9204 has 1 manufacturer part number on file: 75178-67-V (Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc).
Key specifications for 75178-67-V: Width Across Flats: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN; Head Height: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Fastener Length: 1.031 INCHES NOMINAL IN; Shoulder Length: 0.406 INCHES NOMINAL 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.