The Ring,patch, cataloged under National Stock Number 4130-01-018-8776, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,patch |
| FSC / FSG | 4130 — Refrigeration and Air Conditioning Components (FSG 41) |
| Parameter | Value |
|---|---|
| NSN | 4130-01-018-8776 |
| Item Name | Ring,patch |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 551027 | 3/9 Design control — primary reference Lodestone Corp Div of Fedders Corp |
NSN 4130-01-018-8776 is a Ring,patch, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-613-7999, 5325-01-644-1434. 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.