The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-697-0972, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-697-0972 |
| Primary Part Number | 538026 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 7.562 INCHES NOMINAL IN |
| Thread Length | 0.842 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM FIRST HOLE IN |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Style Designator | COUNTERBORE UNTHREADED |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.250 INCHES IN |
| Counterbore Depth | 1.810 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.625 INCHES NOMINAL IN |
| Width Between Flats | 2.000 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.500 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CHROMIUM GRIP |
| Surface Treatment | CADMIUM HEAD |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP E4340 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 6.934 INCHES MINIMUM AND 6.944 INCHES MAXIMUM FIRST HOLE IN |
| Hole Diameter | 0.072 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 |
|---|---|
| 538026 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 538026 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 5306-00-697-0972 is a Bolt,internally Relieved Body, manufactured by Goodrich Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-697-0972 has 1 manufacturer part number on file: 538026 (Goodrich Corporation).
Key specifications for 538026: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 7.562 INCHES NOMINAL IN; Thread Length: 0.842 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM FIRST HOLE IN. 24 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.