The Bolt,machine, cataloged under National Stock Number 5306-00-274-2563, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-274-2563 |
| Primary Part Number | SP12992 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Extended Washer Thickness | 0.130 INCHES NOMINAL IN |
| Head Height | 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Fastener Length | 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Thread Length | 0.563 INCHES NOMINAL IN |
| Hardness Rating | 20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | SQUARE LONGITUDINAL HOLE |
| Material Document and Classification | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | SQUARE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| Width Between Flats | 0.218 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-00-274-2563 is a Bolt,machine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-274-2563 has 2 manufacturer part numbers on file: SP12992 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 206344PC2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for SP12992: Extended Washer Thickness: 0.130 INCHES NOMINAL IN; Head Height: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Fastener Length: 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN; Extended Washer Diameter: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN. 21 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.