The Bolt,machine, cataloged under National Stock Number 5306-01-659-3607, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Portland Bolt & Manufacturing Co Inc. Government technical data includes 17 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 | 5306-01-659-3607 |
| Primary Part Number | 63279 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Portland Bolt & Manufacturing Co Inc |
| Status | ACTIVE |
| Head Height | 0.531 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN |
| Fastener Length | 14.00 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM F2329 AND A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.25 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A307 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 11.75 INCHES NOMINAL IN |
| Width Between Flats | 1.394 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Grip Diameter | 0.875 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 9 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 63279 PRIMARY | Portland Bolt & Manufacturing Co Inc (USA) |
NSN 5306-01-659-3607 is a Bolt,machine, manufactured by Portland Bolt & Manufacturing Co Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-659-3607 has 1 manufacturer part number on file: 63279 (Portland Bolt & Manufacturing Co Inc).
Key specifications for 63279: Head Height: 0.531 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN; Fastener Length: 14.00 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM F2329 AND A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 2.25 INCHES NOMINAL IN. 17 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.