The Cap,filler Opening, cataloged under National Stock Number 2590-01-064-2983, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Komatsu America Corp.. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-064-2983 |
| Primary Part Number | 492356C1 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Accommodation Type | LUGS END GRIPPING |
| Overall Diameter | 3.420 INCHES NOMINAL IN |
| Style Designator | OUTSIDE CAM TYPE W/ LUGS |
| Filler Neck Diameter for Which Designed | 2.000 INCHES NOMINAL IN |
| Cam Quantity | 2 |
| System for Which Designed | NONPRESSURIZED |
| Surface Treatment | CADMIUM OVERALL |
| Special Markings | USE G. M. POWER STEERING FLUID CHECK LEVEL WITH OIL WARM DO NOT OVERFILL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 492356C1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 159759H2 | 5/9 Secondary reference U.S. Government activity |
| 492356C1 | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 2590-01-064-2983 is a Cap,filler Opening, manufactured by Komatsu America Corp., classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-064-2983 has 1 manufacturer part number on file: 492356C1 (Komatsu America Corp.).
Key specifications for 492356C1: Overall Height: 0.750 INCHES NOMINAL IN; Accommodation Type: LUGS END GRIPPING; Overall Diameter: 3.420 INCHES NOMINAL IN; Style Designator: OUTSIDE CAM TYPE W/ LUGS. 9 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.