The Bolt,square Neck, cataloged under National Stock Number 5306-00-514-7534, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-00-514-7534 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Neck Length | 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN |
| Thread Length | 1.125 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Neck Width | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.053 INCHES MINIMUM AND 1.073 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 |
|---|---|
| 70-8-40 | 3/9 Design control — primary reference U.S. Government activity |
| FFB571 | 4/1 Identification reference U.S. Government activity |
NSN 5306-00-514-7534 is a Bolt,square Neck, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-655-8546. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-514-7534: Neck Length: 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Head Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN; Thread Length: 1.125 INCHES MINIMUM IN. 14 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.