The Bolt,shoulder, cataloged under National Stock Number 5306-01-045-6553, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-045-6553 |
| Primary Part Number | 109451-3-29 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 2.127 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN |
| Shoulder Length | 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-507 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 |
|---|---|
| 109451-3-29 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M507-3-29 PRIMARY | The Boeing Company Div Defense (USA) |
| HP5507-3-29 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| MB89-3-29 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M507-3-29 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| MB89-3-29 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| S11-1062-3-29 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VAL23608-3-29 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M507-3-29 | J M Precision Inc (USA) |
| PBF1366-3-29 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| VS3038-3-29 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| ST3M507-3-29 | 5/2 Secondary reference U.S. Government activity |
| VS3038-3-29 | 5/9 Secondary reference U.S. Government activity |
| 109453-3-29Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| MA5507-3-29 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| 109453-3-29Y | 3/2 Design control — primary reference U.S. Government activity |
| BM17019-3-29Y | 5/9 Secondary reference U.S. Government activity |
| BM17019-3-29Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-045-6553 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-045-6553 has 10 manufacturer part numbers on file: 109451-3-29 (Sps Technologies, Llc Dba PB Fasteners), ST3M507-3-29 (The Boeing Company Div Defense), HP5507-3-29 (Heartland Precision Fasteners Inc), MB89-3-29 (Hi-Shear Corporation), ST3M507-3-29 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 5 more.
Key specifications for 109451-3-29: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 2.127 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN; Shoulder Length: 1.802 INCHES MINIMUM AND 1.822 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.