The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-208-0261, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-208-0261 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 8.780 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TY 2.FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 2.000 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 2.478 INCHES MINIMUM AND 2.488 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 1.375 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 8630 OVERALL |
| Thread Series Designator | UN |
| Head Diameter | 3.000 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 |
| Reference | Meaning |
|---|---|
| 339459 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-208-0261 is a Bolt,internally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-208-0261: Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 8.780 INCHES NOMINAL IN; Surface Treatment Document and Classification: TY 2.FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN. 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.