The Bolt,shoulder, cataloged under National Stock Number 5306-00-476-2829, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-476-2829 |
| Primary Part Number | C4UM1027-1 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Head Height | 0.150 INCHES NOMINAL IN |
| Fastener Length | 2.950 INCHES NOMINAL IN |
| Shoulder Length | 2.500 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.312 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | MIL-S-5000 COND F MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.000 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP E4340 OR STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.820 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.250 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 |
|---|---|
| C4UM1027-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
| Reference | Meaning |
|---|---|
| 5306AC1-000 | 5/2 Secondary reference U.S. Government activity |
| MMC116518 | 5/9 Secondary reference Morbec Mfg Co |
NSN 5306-00-476-2829 is a Bolt,shoulder, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-476-2829 has 1 manufacturer part number on file: C4UM1027-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4UM1027-1: Head Height: 0.150 INCHES NOMINAL IN; Fastener Length: 2.950 INCHES NOMINAL IN; Shoulder Length: 2.500 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER IN. 20 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.