The Bolt,shoulder, cataloged under National Stock Number 5306-01-142-2898, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 17 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through both NSN and commercial part number lookups. 17 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-142-2898 |
| Primary Part Number | ST3M507-8D39 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 3.071 INCHES MINIMUM AND 3.118 INCHES MAXIMUM IN |
| Shoulder Length | 2.428 INCHES MINIMUM AND 2.448 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.623 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.752 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.943 INCHES MINIMUM AND 3.000 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| ST3M507-8D39 | J M Precision Inc (USA) |
| ST3M507-8D39 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M507-8D39 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M507-8D39 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M507-8D39 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M507-8D39 | Huck International, Inc (USA) |
| ST3M507-8D39 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| ST3M507-8D39 | 5/9 Secondary reference U.S. Government activity |
| VS3038-8D39 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| BM17019-8D39Y | 5/9 Secondary reference U.S. Government activity |
| MA5570-8D39 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| MB89-8D39 | 5/9 Secondary reference Hi-Shear Corporation |
| BM17019-8D39Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VAL23608-8D39 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| PBF1366-8D39 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| ST3M507-8D39 | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M507-8D39 | 5/2 Secondary reference U.S. Government activity |
| VS3038-8D39 | 5/9 Secondary reference U.S. Government activity |
| ST3M507-8D39 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HP5507-8D39 | 5/9 Secondary reference Heartland Precision Fasteners Inc |
| 109451-8D39 | 5/9 Secondary reference U.S. Government activity |
| MAS570-8D39 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| 109451-8D39 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| S11-1062-8D39 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
NSN 5306-01-142-2898 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-142-2898 has 7 manufacturer part numbers on file: ST3M507-8D39 (J M Precision Inc), ST3M507-8D39 (Sps Technologies, Llc Dba PB Fasteners), ST3M507-8D39 (The Boeing Company Div Defense), ST3M507-8D39 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M507-8D39 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 2 more.
Key specifications for ST3M507-8D39: Head Height: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Fastener Length: 3.071 INCHES MINIMUM AND 3.118 INCHES MAXIMUM IN; Shoulder Length: 2.428 INCHES MINIMUM AND 2.448 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN. 17 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.