The Bolt,machine, cataloged under National Stock Number 5306-01-479-2892, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 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 | 5306-01-479-2892 |
| Primary Part Number | 1-8UNC-2B X 2.5IN LG STL GR 2 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 8 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 703-1554053 P/N 51 | Naval Sea Systems Command (USA) |
| 1-8UNC-2B X 2.5IN LG STL GR 2 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5306-01-479-2892 is a Bolt,machine, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-479-2892 has 2 manufacturer part numbers on file: 703-1554053 P/N 51 (Naval Sea Systems Command), 1-8UNC-2B X 2.5IN LG STL GR 2 (Naval Sea Systems Command).
Key specifications for 1-8UNC-2B X 2.5IN LG STL GR 2: Fastener Length: 2.500 INCHES NOMINAL IN; Nominal Thread Diameter: 1.000 INCHES IN; Thread Direction: RIGHT-HAND; Special Features: PART OF HATCH COVER SUBASSEMBLY. 7 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.