The O-Ring, cataloged under National Stock Number 5331-01-424-9583, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Carrier Corp. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Carrier Corp (CAGE 10855); Carrier Transicold Europe (CAGE FAR44) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-424-9583 |
| Primary Part Number | KK71EW223 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Carrier Corp |
| 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 |
|---|---|
| KK71EW223 PRIMARY | Carrier Corp (USA) |
| KK71EW223 | Carrier Transicold Europe (FRA) |
| Reference | Meaning |
|---|---|
| PL19XL5353558CR IT157 | 5/9 Secondary reference Carrier Corp |
| CAT19.019 IT157 | 5/9 Secondary reference Carrier Corp |
| PL19XL5353458CR IT157 | 5/9 Secondary reference Carrier Corp |
NSN 5331-01-424-9583 is a O-Ring, manufactured by Carrier Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-424-9583 has 2 manufacturer part numbers on file: KK71EW223 (Carrier Corp), KK71EW223 (Carrier Transicold Europe).
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.