The Bolt,machine, cataloged under National Stock Number 5306-00-266-4079, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-266-4079 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| Fastener Length | 1.125 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY HEAD DIM |
| Width Between Flats | 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | B TYPE |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 75000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| C20878 | 5/9 Secondary reference Tecumseh Products Company Llc Div Tecumseh Compressor Co. Llc |
| K8703353 | 5/9 Secondary reference Tecumseh Products Company Llc Div Tecumseh Compressor Co. Llc |
| C20B78 | 5/9 Secondary reference Tecumseh Products Company Llc Div Tecumseh Compressor Co. Llc |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| C20B78 | 5/9 Secondary reference U.S. Government activity |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
| K8703353 | 5/9 Secondary reference U.S. Government activity |
| G87882-4 | 3/2 Design control — primary reference U.S. Government activity |
| C20878 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-266-4079 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-266-4079: Head Height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN; Fastener Length: 1.125 INCHES NOMINAL IN; Thread Length: 1.000 INCHES MINIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN. 16 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.