The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-498-8409, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-498-8409 |
| Primary Part Number | 1B5355 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Height | 0.375 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 16 |
| Material | COPPER ALLOY OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| 1B5355 | Navantia Sa Sme. Div Navantia Hq (ESP) |
| 1B5355 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| 1B5355 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 14KP609 | Oshkosh Defense Llc (USA) |
| 9S-8752 | Pon Power B.v. (NLD) |
| Reference | Meaning |
|---|---|
| 14KP609 | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-00-498-8409 is a Nut,plain,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-498-8409 has 5 manufacturer part numbers on file: 1B5355 (Navantia Sa Sme. Div Navantia Hq), 1B5355 (Navantia - Propulsion Y Energia Motores - Cartagena), 1B5355 (Caterpillar Inc Div Caterpillar Defense), 14KP609 (Oshkosh Defense Llc), 9S-8752 (Pon Power B.v.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-183-1237. Verify interchangeability with system specifications before substitution.
Key specifications for 1B5355: Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN. 11 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.