The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-761-4274, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-761-4274 |
| Primary Part Number | A02R2887-2 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Head Height | 1.281 INCHES NOMINAL IN |
| Fastener Length | 1.594 INCHES NOMINAL IN |
| Thread Length | 1.415 INCHES MINIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 630 OVERALL |
| Hole Quantity | 3 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL 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 |
|---|---|
| A02R2887-2 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| A02R2887-2 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-761-4274 is a Bolt,internally Relieved Body, manufactured by The Boeing Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-761-4274 has 1 manufacturer part number on file: A02R2887-2 (The Boeing Company).
Key specifications for A02R2887-2: Head Height: 1.281 INCHES NOMINAL IN; Fastener Length: 1.594 INCHES NOMINAL IN; Thread Length: 1.415 INCHES MINIMUM IN; Hole Configuration Style: HEXAGON FLATS. 19 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.