The Bolt,square Neck, cataloged under National Stock Number 5306-00-089-2813, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-00-089-2813 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Neck Length | 0.564 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Head Height | 0.120 INCHES MAXIMUM IN |
| Fastener Length | 3.130 INCHES NOMINAL IN |
| Thread Length | 1.750 INCHES MAXIMUM IN |
| Material Document and Classification | 10060,FSCM 97907 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Neck Width | 1.000 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN |
| Countersink Angle | 81.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 64 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.594 INCHES MINIMUM AND 1.656 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 |
|---|---|
| 9353854 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-00-089-2813 is a Bolt,square Neck, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-158-4548. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-089-2813: Neck Length: 0.564 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN; Head Height: 0.120 INCHES MAXIMUM IN; Fastener Length: 3.130 INCHES NOMINAL IN; Thread Length: 1.750 INCHES MAXIMUM IN. 15 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.