The Screw,shoulder, cataloged under National Stock Number 5305-01-673-6432, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Container Research Corp Dba Container Research Corp Div Containr Research Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-673-6432 |
| Primary Part Number | STD-280-4 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Container Research Corp Dba Container Research Corp Div Containr Research Corporation |
| Status | ACTIVE |
| Head Height | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Fastener Length | 0.215 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Thread Length | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Material Document and Classification | A564 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 8.0 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Countersink Angle | 0.005 RADIANS NOMINAL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32.0 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.276 INCHES MINIMUM AND 0.286 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 |
|---|---|
| STD-280-4 PRIMARY | Container Research Corp Dba Container Research Corp Div Containr Research Corporation (USA) |
| Reference | Meaning |
|---|---|
| STD-280 | D/9 Drawing number reference only Container Research Corp Dba Container Research Corp Div Containr Research Corporation |
NSN 5305-01-673-6432 is a Screw,shoulder, manufactured by Container Research Corp Dba Container Research Corp Div Containr Research Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-673-6432 has 1 manufacturer part number on file: STD-280-4 (Container Research Corp Dba Container Research Corp Div Containr Research Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-673-6454. Verify interchangeability with system specifications before substitution.
Key specifications for STD-280-4: Head Height: 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Fastener Length: 0.215 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Thread Length: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; Material Document and Classification: A564 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL. 13 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.