The Bolt,shoulder, cataloged under National Stock Number 5306-01-343-8809, 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 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-343-8809 |
| Primary Part Number | SC5081-6D71P |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Fastener Length | 5.041 INCHES MINIMUM AND 5.081 INCHES MAXIMUM IN |
| Shoulder Length | 4.444 INCHES MINIMUM AND 4.464 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.433 INCHES MINIMUM AND 0.437 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.607 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.187 INCHES MINIMUM AND 0.207 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.854 INCHES NOMINAL 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 | N |
| Part Number | Manufacturer |
|---|---|
| SC5081-6D71P | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 3D0124-6D71 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-343-8809 is a Bolt,shoulder, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-343-8809 has 1 manufacturer part number on file: SC5081-6D71P (Howmet Global Fastening Systems Inc).
Key specifications for SC5081-6D71P: Head Height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN; Fastener Length: 5.041 INCHES MINIMUM AND 5.081 INCHES MAXIMUM IN; Shoulder Length: 4.444 INCHES MINIMUM AND 4.464 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.