The Bolt,machine, cataloged under National Stock Number 5306-01-144-6065, 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 18 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 | 5306-01-144-6065 |
| Primary Part Number | 65261-08019-101 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP |
| Head Height | 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN |
| Fastener Length | 5.140 INCHES NOMINAL5.140 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE HEADMIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | MIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE THREADSMIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE THREADS |
| Thread Length | 1.050 INCHES NOMINAL1.050 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM ALL HOLES0.151 INCHES MAXIMUM ALL HOLES IN |
| Nominal Thread Diameter | 1.250 INCHES1.250 INCHES IN |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Width Between Flats | 1.801 INCHES MINIMUM AND 1.801 INCHES MINIMUM AND 1.815 INCHES MAXIMUM1.815 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM HEADCADMIUM HEAD |
| Surface Treatment | CADMIUM THREADSCADMIUM THREADS |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 1212 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.870 INCHES NOMINAL FIRST HOLE4.870 INCHES NOMINAL FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 65261-08019-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5306-01-144-6065 is a Bolt,machine, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-144-6065 has 1 manufacturer part number on file: 65261-08019-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65261-08019-101: Surface Finish: 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP; Head Height: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN; Fastener Length: 5.140 INCHES NOMINAL5.140 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE HEADMIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE HEAD. 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.