The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-409-0662, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-409-0662 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.130 INCHES NOMINAL IN |
| Fastener Length | 4.250 INCHES MINIMUM AND 4.255 INCHES MAXIMUM IN |
| Thread Length | 0.400 INCHES MAXIMUM IN |
| Material Document and Classification | S99B,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.562 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 2.700 INCHES MINIMUM AND 2.705 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 3.850 INCHES MINIMUM AND 3.855 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.050 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Third Diameter From Head | 0.562 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| F271714 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems (operations) Limited |
| F271714 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
| 99-6035864 | 6/9 Informative reference only U.S. Government activity |
NSN 5306-00-409-0662 is a Bolt,externally Relieved Body, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-409-0662: Head Height: 0.130 INCHES NOMINAL IN; Fastener Length: 4.250 INCHES MINIMUM AND 4.255 INCHES MAXIMUM IN; Thread Length: 0.400 INCHES MAXIMUM IN; Material Document and Classification: S99B,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 19 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.