The Screw,shoulder, cataloged under National Stock Number 5305-00-075-9507, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 18 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. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-075-9507 |
| Primary Part Number | 581528 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Width Across Flats | 0.190 INCHES NOMINAL IN |
| Head Height | 0.180 INCHES NOMINAL IN |
| Fastener Length | 0.820 INCHES MINIMUM IN |
| Thread Length | 0.380 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | ROUND |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 410 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Diameter | 0.048 INCHES NOMINAL IN |
| Head Diameter | 0.620 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 |
|---|---|
| 581528 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5305-00-075-9507 is a Screw,shoulder, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-075-9507 has 1 manufacturer part number on file: 581528 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
5 possible matches (shared part number, not a government interchangeability claim): 5342-00-191-8653, 5945-01-235-7678, 4820-01-367-9886. Verify interchangeability with system specifications before substitution.
Key specifications for 581528: Width Across Flats: 0.190 INCHES NOMINAL IN; Head Height: 0.180 INCHES NOMINAL IN; Fastener Length: 0.820 INCHES MINIMUM IN; Thread Length: 0.380 INCHES MINIMUM 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.