The Screw,shoulder, cataloged under National Stock Number 5305-00-310-9264, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-310-9264 |
| Primary Part Number | 145406 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.540 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN |
| Fastener Length | 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN |
| Thread Length | 1.700 INCHES MINIMUM IN |
| Head Style | FLAT CHAMFER |
| Thread Class | 2A A |
| Head Diameter | 0.307 INCHES MINIMUM AND 0.309 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 |
|---|---|
| 145406 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5305-00-310-9264 is a Screw,shoulder, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-310-9264 has 1 manufacturer part number on file: 145406 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-404-6321. Verify interchangeability with system specifications before substitution.
Key specifications for 145406: Head Height: 0.540 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN; Fastener Length: 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN; Thread Length: 1.700 INCHES MINIMUM IN; Head Style: FLAT CHAMFER. 6 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.