The Cap,filler Opening, cataloged under National Stock Number 2590-01-173-1017, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Gates Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2590-01-173-1017 |
| Primary Part Number | 31720 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Gates Corporation |
| Status | ACTIVE |
| Accommodation Type | KNURLED END GRIPPING |
| Style Designator | PRESSURE-VACUME TYPE FOR EMISSION CONTROL |
| Features Provided | SEAL AND INTEGRAL VACUUM RELIEF VALVE |
| System for Which Designed | PRESSURIZED |
| Pressure Relief Method | AUTOMATIC |
| Surface Treatment | DICHROMATE AND ZINC BODY |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 31720 | Gates Corporation (USA) |
| Reference | Meaning |
|---|---|
| J3227811 | 3/2 Design control — primary reference U.S. Government activity |
| 3233534 | 5/9 Secondary reference U.S. Government activity |
| 3227811 | 5/9 Secondary reference U.S. Government activity |
| J3233534 | 3/2 Design control — primary reference U.S. Government activity |
| 3233535 | 5/9 Secondary reference Kenosha Automotive Plant Sub of American Motors Corp |
NSN 2590-01-173-1017 is a Cap,filler Opening, manufactured by Gates Corporation, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-173-1017 has 1 manufacturer part number on file: 31720 (Gates Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-331-2027. Verify interchangeability with system specifications before substitution.
Key specifications for 31720: Accommodation Type: KNURLED END GRIPPING; Style Designator: PRESSURE-VACUME TYPE FOR EMISSION CONTROL; Features Provided: SEAL AND INTEGRAL VACUUM RELIEF VALVE; System for Which Designed: PRESSURIZED. 7 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.