The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-045-9671, 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 20 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 | 5306-00-045-9671 |
| Primary Part Number | 211087P20 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN |
| Fastener Length | 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN |
| Thread Length | 0.635 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 7470 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.394 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 2.440 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Third Diameter From Head | 0.394 INCHES NOMINAL IN |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 211087P20 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5306-00-045-9671 is a Bolt,externally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-045-9671 has 1 manufacturer part number on file: 211087P20 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 211087P20: Head Height: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Fastener Length: 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN; Thread Length: 0.635 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 20 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.