The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-550-1626, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hatch & Kirk, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-550-1626 |
| Primary Part Number | 3260946 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 1.875 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| First Diameter From Head | 0.500 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.438 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.401 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Width Between Flats | 0.812 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.937 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 3260946 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3260946 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 5306-00-550-1626 is a Bolt,externally Relieved Body, manufactured by Hatch & Kirk, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-550-1626 has 1 manufacturer part number on file: 3260946 (Hatch & Kirk, Inc.).
Key specifications for 3260946: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 1.875 INCHES NOMINAL IN; Thread Length: 0.500 INCHES MINIMUM IN; Hole Configuration Style: HEXAGON FLATS. 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.