The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-522-9590, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-522-9590 |
| Primary Part Number | P12611340 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Head Height | 1.180 INCHES NOMINAL IN |
| External Thread Tolerance Class | 4G6G |
| Fastener Length | 4.370 INCHES NOMINAL IN |
| Thread Pitch in Millimeters | 3.0 |
| Thread Length | 2.700 INCHES NOMINAL IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | NF XC48 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 76.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.322 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.781 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| P12611340 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| P12611340 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-522-9590 is a Bolt,internally Relieved Body, manufactured by Fairbanks Morse, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-522-9590 has 1 manufacturer part number on file: P12611340 (Fairbanks Morse, Llc).
Key specifications for P12611340: Head Height: 1.180 INCHES NOMINAL IN; External Thread Tolerance Class: 4G6G; Fastener Length: 4.370 INCHES NOMINAL IN; Thread Pitch in Millimeters: 3.0. 15 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.