The Bolt,shoulder, cataloged under National Stock Number 5306-01-384-4238, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-384-4238 |
| Primary Part Number | 1286121-101 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Head Height | 0.446 INCHES NOMINAL IN |
| Fastener Length | 1.370 INCHES NOMINAL IN |
| Shoulder Length | 1.345 INCHES MINIMUM AND 1.355 INCHES MAXIMUM ALL SHOULDERS IN |
| Shoulder Diameter | 0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Length | 0.360 INCHES NOMINAL IN |
| Shoulder Shape | ROUND OVERALL |
| Hole Configuration Style | ROUND |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP E4340 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 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 |
| Part Number | Manufacturer |
|---|---|
| 1286121-101 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5306-01-384-4238 is a Bolt,shoulder, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-384-4238 has 1 manufacturer part number on file: 1286121-101 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 1286121-101: Head Height: 0.446 INCHES NOMINAL IN; Fastener Length: 1.370 INCHES NOMINAL IN; Shoulder Length: 1.345 INCHES MINIMUM AND 1.355 INCHES MAXIMUM ALL SHOULDERS IN; Shoulder Diameter: 0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM ALL SHOULDERS IN. 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.