The Bolt,shoulder, cataloged under National Stock Number 5306-01-349-8139, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-349-8139 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 15.890 INCHES MINIMUM AND 15.950 INCHES MAXIMUM IN |
| Shoulder Length | 15.800 INCHES MINIMUM AND 15.840 INCHES MAXIMUM ALL SHOULDERS IN |
| Surface Treatment Document and Classification | QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.4997 INCHES MINIMUM AND 0.4999 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Length | 0.650 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Material Document and Classification | AMS 5630(440C) ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 440C OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.750 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3661500-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-349-8139 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-349-8139: Head Height: 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Fastener Length: 15.890 INCHES MINIMUM AND 15.950 INCHES MAXIMUM IN; Shoulder Length: 15.800 INCHES MINIMUM AND 15.840 INCHES MAXIMUM ALL SHOULDERS IN; Surface Treatment Document and Classification: QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 18 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.