The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-423-9212, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 13 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 | 5306-00-423-9212 |
| Primary Part Number | 4B1092 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 1.688 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.125 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.625 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL 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 |
|---|---|
| 4B1092 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5306-00-423-9212 is a Bolt,internally Relieved Body, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-423-9212 has 1 manufacturer part number on file: 4B1092 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4B1092: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 1.688 INCHES NOMINAL IN; Thread Length: 0.750 INCHES MINIMUM IN; Style Designator: CONCENTRIC HOLE UNTHREADED. 13 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.