The Bolt,shoulder, cataloged under National Stock Number 5306-00-262-0070, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-262-0070 |
| Primary Part Number | 729125-101 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.178 INCHES NOMINAL IN |
| Head Height | 0.711 INCHES NOMINAL IN |
| Fastener Length | 8.930 INCHES MINIMUM AND 8.970 INCHES MAXIMUM IN |
| Shoulder Length | 7.810 INCHES MINIMUM AND 7.860 INCHES MAXIMUM FIRST SHOULDER IN |
| Extended Washer Diameter | 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 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 | F |
| Part Number | Manufacturer |
|---|---|
| 729125-101 | Huck International, Inc (USA) |
| ASE50300-87 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 729125-101 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 729125-101 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 729125-101 | Howmet Global Fastening Systems Inc (USA) |
| 729125-101 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 729125-101 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 729125-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-262-0070 is a Bolt,shoulder, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-262-0070 has 7 manufacturer part numbers on file: 729125-101 (Huck International, Inc), ASE50300-87 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 729125-101 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 729125-101 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 729125-101 (Howmet Global Fastening Systems Inc) and 2 more.
Key specifications for 729125-101: Extended Washer Thickness: 0.178 INCHES NOMINAL IN; Head Height: 0.711 INCHES NOMINAL IN; Fastener Length: 8.930 INCHES MINIMUM AND 8.970 INCHES MAXIMUM IN; Shoulder Length: 7.810 INCHES MINIMUM AND 7.860 INCHES MAXIMUM FIRST SHOULDER IN. 23 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.