The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-227-6562, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Textron Systems Corporation Dba Textron Systems Corp. Government technical data includes 12 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 | 5306-01-227-6562 |
| Primary Part Number | 122-52581-1 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Textron Systems Corporation Dba Textron Systems Corp |
| Status | ACTIVE |
| Head Height | 0.885 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| Fastener Length | 0.355 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Hardness Rating | 40.0 ROCKWELL C NOMINAL OVERALL |
| First Diameter From Head | 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.500 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Material | STEEL COMP 416 OVERALL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 122-52581-1 PRIMARY | Textron Systems Corporation Dba Textron Systems Corp (USA) |
NSN 5306-01-227-6562 is a Bolt,externally Relieved Body, manufactured by Textron Systems Corporation Dba Textron Systems Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-227-6562 has 1 manufacturer part number on file: 122-52581-1 (Textron Systems Corporation Dba Textron Systems Corp).
Key specifications for 122-52581-1: Head Height: 0.885 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN; Fastener Length: 0.355 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN; Thread Length: 0.375 INCHES NOMINAL IN; Hardness Rating: 40.0 ROCKWELL C NOMINAL OVERALL. 12 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.