The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-525-3573, 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 14 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 | 5306-01-525-3573 |
| Primary Part Number | 7408866 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.197 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Fastener Length | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Concentric Hole Depth | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Thread Length | 0.756 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Concentric Hole Diameter | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | IRON OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.102 INCHES MINIMUM AND 1.104 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 |
NSN 5306-01-525-3573 is a Bolt,internally Relieved Body, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-525-3573 has 2 manufacturer part numbers on file: 7408866 (Naval Sea Systems Command), 7408866 (Southern Fasteners & Supply, Llc).
Key specifications for 7408866: Head Height: 0.197 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN; Fastener Length: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN; Concentric Hole Depth: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN; Thread Length: 0.756 INCHES MINIMUM AND 0.766 INCHES MAXIMUM 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.