The Bolt,shoulder, cataloged under National Stock Number 5306-01-142-9897, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 18 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-142-9897 |
| Primary Part Number | VS3037-4-8 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| Fastener Length | 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN |
| Shoulder Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2646 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.439 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| 109450-4-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BM17019-4-8X | Huck International, Inc (USA) |
| ST3M497-4-8 | Houston Precision Fasteners I Lp (USA) |
| VS3037-4-8 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST3M497-4-8 | Hi-Shear Corporation (USA) |
| ST3M497-4-8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11915-4-8 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M497-4-8 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M497-4-8 | Huck International, Inc (USA) |
| ST3M497-4-8 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M497-4-8 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| WC497-4-8 | West Coast Aerospace, Inc. (USA) |
| ST3M497-4-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M497-4-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M497-4-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M497-4-8 | Howmet Global Fastening Systems Inc (USA) |
| ST3M497-4-8 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M497-4-8 | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| 109450-4-8 | 5/9 Secondary reference U.S. Government activity |
| VAL23607-4-8 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| PBF1254-4-8 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| ST3M497-4-8 | 5/2 Secondary reference U.S. Government activity |
| MB88-4-8 | 5/9 Secondary reference Hi-Shear Corporation |
| VS3037-4-8 | 5/9 Secondary reference U.S. Government activity |
| BM17019-4-8X | 5/9 Secondary reference U.S. Government activity |
| S11-1061-4-8 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| HP5497-4-8 | 3/9 Design control — primary reference Heartland Precision Fasteners Inc |
| MA5497-4-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M497-4-8 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-142-9897 is a Bolt,shoulder, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-142-9897 has 18 manufacturer part numbers on file: 109450-4-8 (Sps Technologies, Llc Dba PB Fasteners), BM17019-4-8X (Huck International, Inc), ST3M497-4-8 (Houston Precision Fasteners I Lp), VS3037-4-8 (Howmet Global Fastening Systems Inc), ST3M497-4-8 (Hi-Shear Corporation) and 13 more.
Key specifications for VS3037-4-8: Head Height: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN; Fastener Length: 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN; Shoulder Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.