The Ring,piston, cataloged under National Stock Number 3040-00-244-2226, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is C M P Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-244-2226 |
| Primary Part Number | RNG-1584 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | C M P Corporation |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 2.500 INCHES IN |
| 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 |
|---|---|
| RNG-1584 PRIMARY | C M P Corporation (USA) |
| Reference | Meaning |
|---|---|
| 025000200 | 5/9 Secondary reference Copeland Corp |
| 4R48-024 | 5/9 Secondary reference Copeland Corp |
| 025-0002-00 | 5/9 Secondary reference Copeland Corp |
NSN 3040-00-244-2226 is a Ring,piston, manufactured by C M P Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-244-2226 has 1 manufacturer part number on file: RNG-1584 (C M P Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4130-00-351-8181. Verify interchangeability with system specifications before substitution.
Key specifications for RNG-1584: Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Ring Style: CONCENTRIC; Standard Bore Diameter: 2.500 INCHES IN. 5 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.