The Bolt,shoulder, cataloged under National Stock Number 5306-01-423-8520, 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18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-423-8520 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Fastener Length | 2.919 INCHES MINIMUM AND 2.949 INCHES MAXIMUM IN |
| Shoulder Length | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2, CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Shoulder Diameter | 0.9042 INCHES MINIMUM AND 0.9052 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.184 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-2-5000 MIL SPEC 1ST MATERIAL RESPONSE OR IL-S-6049 FED STD 10TH MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 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 |
|---|---|
| BACB30NE14-28Y | 5/9 Secondary reference U.S. Government activity |
| NAS6614-28Y | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-423-8520 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-423-8520: Head Height: 0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Fastener Length: 2.919 INCHES MINIMUM AND 2.949 INCHES MAXIMUM IN; Shoulder Length: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416 TY 2, CL 2 FED SPEC ALL TREATMENT RESPONSES 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.