The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-475-0206, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is De Havilland Aircraft of Canada Limited. Government technical data includes 22 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 | 5306-00-475-0206 |
| Primary Part Number | C4WM1296-1 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Head Height | 0.080 INCHES NOMINAL IN |
| Fastener Length | 2.190 INCHES NOMINAL IN |
| Thread Length | 0.395 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Style Designator | COUNTERBORE UNTHREADED |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Counterbore Depth | 1.600 INCHES NOMINAL IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.500 INCHES NOMINAL IN |
| Width Between Flats | 0.880 INCHES NOMINAL IN |
| Shoulder Diameter | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4130 OVERALL |
| Shoulder Length | 1.665 INCHES MINIMUM AND 1.670 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.040 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.000 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 |
| Part Number | Manufacturer |
|---|---|
| C4WM1296-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
NSN 5306-00-475-0206 is a Bolt,internally Relieved Body, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-475-0206 has 1 manufacturer part number on file: C4WM1296-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4WM1296-1: Head Height: 0.080 INCHES NOMINAL IN; Fastener Length: 2.190 INCHES NOMINAL IN; Thread Length: 0.395 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.106 INCHES NOMINAL FIRST HOLE IN. 22 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.