The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-207-5187, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-207-5187 |
| Primary Part Number | 255711 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Extended Washer Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.125 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | SILVER OVERALL |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Hole Type | DRILLED |
| Nonstandard Thread Pitch Diameter | +0.2800 TO 0.2824 INCHES IN |
| Thread Series Designator | UNF |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Precious Material | SILVER |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Head Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hole Diameter | 0.065 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Fastener Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Extended Washer Thickness | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Hole Quantity | 2 |
| Thread Quantity Per Inch | 24 |
| First Diameter From Head | 0.247 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 255711 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5306-00-207-5187 is a Bolt,externally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-207-5187 has 1 cross-referenced part number: 255711 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There are 3 known substitutes for 5306-00-207-5187: 4720-00-083-9519, 4510-00-383-5152, 5990-00-503-0594. Verify interchangeability with system specifications before substitution.
Key specifications for 255711: Material: STEEL CORROSION RESISTING OVERALL; Extended Washer Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 25 total characteristics are documented in the Federal Logistics Information System.