The Bolt,shoulder, cataloged under National Stock Number 5306-01-346-0518, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-346-0518 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Head Height | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Fastener Length | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Shoulder Length | 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM ALL SHOULDERS IN |
| Extended Washer Diameter | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.374 INCHES NOMINAL ALL SHOULDERS IN |
| Thread Length | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Material Document and Classification | AMS 7477 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.313 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.427 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 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 |
| Reference | Meaning |
|---|---|
| 3090893-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-346-0518 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-346-0518: Extended Washer Thickness: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Head Height: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; Fastener Length: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN; Shoulder Length: 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM ALL SHOULDERS IN. 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.