The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-680-6791, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-680-6791 |
| Primary Part Number | 369297 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.375 INCHES NOMINAL IN |
| Head Height | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Fastener Length | 2.030 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Thread Length | 0.515 INCHES MINIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| First Diameter From Head | 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Surface Treatment | SILVER OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 1A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 1.510 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| Third Diameter From Head | 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Head Diameter | 0.615 INCHES MINIMUM AND 0.635 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 | X |
| Part Number | Manufacturer |
|---|---|
| 369297 | Linread Ltd (GBR) |
| 369297 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 369297 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 369297 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 369297 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 369297 | 5/2 Secondary reference U.S. Government activity |
| 369297 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-680-6791 is a Bolt,externally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-680-6791 has 5 manufacturer part numbers on file: 369297 (Linread Ltd), 369297 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 369297 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 369297 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 369297 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 369297: Fourth Diameter From Head: 0.375 INCHES NOMINAL IN; Head Height: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Fastener Length: 2.030 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN. 25 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.