The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-250-5487, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-250-5487 |
| Primary Part Number | 8713862 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 1.938 INCHES NOMINAL IN |
| Fastener Length | 3.093 INCHES NOMINAL IN |
| Internal Thread Length | 0.875 INCHES NOMINAL COUNTERBORE IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) COUNTERBORE |
| Concentric Hole Depth | 1.187 INCHES NOMINAL IN |
| Internal Thread Direction | RIGHT-HAND COUNTERBORE |
| Thread Length | 0.938 INCHES MINIMUM IN |
| Hardness Rating | 302.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL |
| Threads Per Inch | 16 COUNTERBORE |
| Style Designator | COUNTERBORE THREADED |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES COUNTERBORE IN |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Internal Thread Class | 3B CONCENTRIC HOLE |
| Concentric Hole Diameter | 0.312 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 8637 OR STEEL COMP 8640 OR STEEL COMP 4140 OR STEEL COMP 8740 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 |
|---|---|
| 8713862 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-00-250-5487 is a Bolt,internally Relieved Body, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-250-5487 has 1 manufacturer part number on file: 8713862 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8713862: Head Height: 1.938 INCHES NOMINAL IN; Fastener Length: 3.093 INCHES NOMINAL IN; Internal Thread Length: 0.875 INCHES NOMINAL COUNTERBORE IN; Thread Series: UNIFIED NATIONAL COARSE (UNC) COUNTERBORE. 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.