The Bolt,machine, cataloged under National Stock Number 5306-01-026-9992, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-026-9992 |
| Primary Part Number | 9S8890 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.222 INCHES NOMINAL IN |
| Head Height | 0.605 INCHES NOMINAL IN |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.928 INCHES NOMINAL IN |
| Thread Length | 0.889 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.626 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| 9S8890 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 9S8890-00 | 5/9 Secondary reference Mil-Tech Mfg Inc |
NSN 5306-01-026-9992 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-026-9992 has 1 manufacturer part number on file: 9S8890 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9S8890: Extended Washer Thickness: 0.222 INCHES NOMINAL IN; Head Height: 0.605 INCHES NOMINAL IN; Fastener Length: 1.000 INCHES NOMINAL IN; Extended Washer Diameter: 0.928 INCHES NOMINAL IN. 14 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.