The Bolt,shoulder, cataloged under National Stock Number 5306-00-302-9083, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 21 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 | 5306-00-302-9083 |
| Primary Part Number | S1665-20012 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Extended Washer Thickness | 0.340 INCHES NOMINAL IN |
| Head Height | 0.485 INCHES NOMINAL IN |
| Fastener Length | 1.046 INCHES NOMINAL IN |
| Shoulder Length | 0.426 INCHES MINIMUM AND 0.431 INCHES MAXIMUM FIRST SHOULDER IN |
| Extended Washer Diameter | 0.620 INCHES MINIMUM AND 0.621 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.555 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hole Configuration Style | HEXAGON FLATS |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4130 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL 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 |
|---|---|
| S1665-20012 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5306-00-302-9083 is a Bolt,shoulder, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-302-9083 has 1 manufacturer part number on file: S1665-20012 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S1665-20012: Extended Washer Thickness: 0.340 INCHES NOMINAL IN; Head Height: 0.485 INCHES NOMINAL IN; Fastener Length: 1.046 INCHES NOMINAL IN; Shoulder Length: 0.426 INCHES MINIMUM AND 0.431 INCHES MAXIMUM FIRST SHOULDER IN. 21 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.