The Cap,filler Opening, cataloged under National Stock Number 2590-01-012-6934, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Williams International Co., L.l.c.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-012-6934 |
| Primary Part Number | 25902 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Retaining Device Type | CHAIN |
| Style Designator | CLOSED COOLING SYSTEM TYPE |
| Outside Diameter | 1.930 INCHES NOMINAL IN |
| Cam Quantity | 1 |
| System for Which Designed | PRESSURIZED |
| Pressure Relief Method | AUTOMATIC |
| Maximum Working Pressure | 25.000 POUNDS PER SQUARE INCH (PSI) LBS |
| Material | ALUMINUM ALLOY BODY |
| Retaining Device Length | 6.000 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 |
|---|---|
| 25902 | Williams International Co., L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| 417-452C | 5/9 Secondary reference U.S. Government activity |
| 25902 | 5/9 Secondary reference U.S. Government activity |
| 417-686 | 3/2 Design control — primary reference U.S. Government activity |
| 417-452C | 5/9 Secondary reference Williams International Co., L.l.c. |
NSN 2590-01-012-6934 is a Cap,filler Opening, manufactured by Williams International Co., L.l.c., classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-012-6934 has 1 manufacturer part number on file: 25902 (Williams International Co., L.l.c.).
3 possible matches (shared part number, not a government interchangeability claim): 5999-01-070-2502, 5325-01-074-8133, 4820-01-347-7517. Verify interchangeability with system specifications before substitution.
Key specifications for 25902: Overall Height: 1.675 INCHES NOMINAL IN; Retaining Device Type: CHAIN; Style Designator: CLOSED COOLING SYSTEM TYPE; Outside Diameter: 1.930 INCHES NOMINAL IN. 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.