The Screw,shoulder, cataloged under National Stock Number 5305-01-034-2829, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-034-2829 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.430 INCHES NOMINAL IN |
| Shoulder Length | 0.074 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.160 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-A-200/11,ALLOY 7075,T73 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/12,ALLOY 7079 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.485 INCHES MINIMUM AND 0.500 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 |
| Reference | Meaning |
|---|---|
| 772220-1 | 5/2 Secondary reference U.S. Government activity |
| 77220-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-034-2829 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6625-01-426-6758. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-034-2829: Fastener Length: 0.430 INCHES NOMINAL IN; Shoulder Length: 0.074 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.160 INCHES NOMINAL IN. 16 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.