The Bolt,machine, cataloged under National Stock Number 5306-01-566-8263, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Stage 8 Fasteners, Inc. Dba Stage 8 Locking Fasteners. Government technical data includes 16 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 | 5306-01-566-8263 |
| Primary Part Number | AB106301817518CB |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Stage 8 Fasteners, Inc. Dba Stage 8 Locking Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.166 INCHES NOMINAL IN |
| Head Height | 0.360 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-DTL-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Thread Length | 1.750 INCHES NOMINAL IN |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.618 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Minimum Tensile Strength | 170000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 153000 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| AB106301817518CB PRIMARY | Stage 8 Fasteners, Inc. Dba Stage 8 Locking Fasteners (USA) |
| 12505540-002 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-01-566-8263 is a Bolt,machine, manufactured by Stage 8 Fasteners, Inc. Dba Stage 8 Locking Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-566-8263 has 2 manufacturer part numbers on file: AB106301817518CB (Stage 8 Fasteners, Inc. Dba Stage 8 Locking Fasteners), 12505540-002 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for AB106301817518CB: Extended Washer Thickness: 0.166 INCHES NOMINAL IN; Head Height: 0.360 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-DTL-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Extended Washer Diameter: 0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN. 16 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.