The Ring Piston, cataloged under National Stock Number 4130-00-587-6488, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Emerson Climate Technologies Sarl. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring Piston |
| FSC / FSG | 4130 — Refrigeration and Air Conditioning Components (FSG 41) |
| Manufacturers | Emerson Climate Technologies Sarl (CAGE F3065) |
| Parameter | Value |
|---|---|
| NSN | 4130-00-587-6488 |
| Primary Part Number | 2046246 |
| Item Name | Ring Piston |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Emerson Climate Technologies Sarl |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2046246 | Emerson Climate Technologies Sarl (FRA) |
| Reference | Meaning |
|---|---|
| 2046246 | 5/9 Secondary reference Wuppermetall Gmbh - Metallschmelze - |
| LRG-023-1 | 5/9 Secondary reference Copeland Corp |
| 025-0008-00 | 3/9 Design control — primary reference Copeland Corp |
NSN 4130-00-587-6488 is a Ring Piston, manufactured by Emerson Climate Technologies Sarl, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-587-6488 has 1 manufacturer part number on file: 2046246 (Emerson Climate Technologies Sarl).
1 possible match (shared part number, not a government interchangeability claim): 6530-01-532-2225. Verify interchangeability with system specifications before substitution.
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.