The Bolt,shoulder, cataloged under National Stock Number 5306-00-421-3357, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 13 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 | 5306-00-421-3357 |
| Primary Part Number | 53-32051-5 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 2.607 INCHES NOMINAL IN |
| Shoulder Length | 1.757 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.321 INCHES MINIMUM AND 0.326 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.440 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-S-5626 COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 53-32051-5 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5306-00-421-3357 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-421-3357 has 1 manufacturer part number on file: 53-32051-5 (The Boeing Company Div Defense).
Key specifications for 53-32051-5: Fastener Length: 2.607 INCHES NOMINAL IN; Shoulder Length: 1.757 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.321 INCHES MINIMUM AND 0.326 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.440 INCHES NOMINAL IN. 13 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.