The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-166-4536, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Plc Div Defense (europe). Government technical data includes 18 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 | 5306-01-166-4536 |
| Primary Part Number | B486440 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rolls-Royce Plc Div Defense (europe) |
| Status | ACTIVE |
| Head Height | 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Fastener Length | 1.930 INCHES NOMINAL IN |
| Thread Length | 0.700 INCHES NOMINAL IN |
| Material Document and Classification | MSRR6001,FSCM K0378 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.190 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Width Between Flats | 0.483 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.430 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.605 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| B486440 PRIMARY | Rolls-Royce Plc Div Defense (europe) (GBR) |
NSN 5306-01-166-4536 is a Bolt,externally Relieved Body, manufactured by Rolls-Royce Plc Div Defense (europe), classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-166-4536 has 1 manufacturer part number on file: B486440 (Rolls-Royce Plc Div Defense (europe)).
Key specifications for B486440: Head Height: 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; Fastener Length: 1.930 INCHES NOMINAL IN; Thread Length: 0.700 INCHES NOMINAL IN; Material Document and Classification: MSRR6001,FSCM K0378 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 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.