The Bolt,shoulder, cataloged under National Stock Number 5306-01-142-9888, 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 15 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-142-9888 |
| Primary Part Number | ST3M507-3-1 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.379 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN |
| Shoulder Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.307 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.376 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST3M507-3-1 PRIMARY | The Boeing Company Div Defense (USA) |
| PBF1366-3-1 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HP5507-3-1 | Heartland Precision Fasteners Inc (USA) |
| MB89-3-1 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M507-3-1 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| S11-1062-3-1 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB89-3-1 PRIMARY | Hi-Shear Corporation (USA) |
| VAL23608-3-1 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M507-3-1 | J M Precision Inc (USA) |
| ST3M507-3-1 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| VS3038-3-1 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 109451-3-1 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM17019-3-1Y | 5/9 Secondary reference U.S. Government activity |
| 109451-3-1 | 3/2 Design control — primary reference U.S. Government activity |
| VS3038-3-1 | 5/9 Secondary reference U.S. Government activity |
| MA5507-3-1 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M507-3-1 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| BM17019-3-1Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| ST3M507-3-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-142-9888 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-142-9888 has 10 manufacturer part numbers on file: ST3M507-3-1 (The Boeing Company Div Defense), PBF1366-3-1 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HP5507-3-1 (Heartland Precision Fasteners Inc), MB89-3-1 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M507-3-1 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 5 more.
Key specifications for ST3M507-3-1: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 0.379 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN; Shoulder Length: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.