The Ring,wearing, cataloged under National Stock Number 4320-01-198-5682, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Carver Pump Company. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-198-5682 |
| Primary Part Number | 007-7101890-252 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Material Document and Classification | QQ-C-390,ALLOY NO. D5,TYPE I FED SPEC ALL MATERIAL RESPONSES |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| AB722-1973-000-PIECE 22 | Carver Pump Company (USA) |
| 007-7101890-252 PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 676 1890 209 | 5/9 Secondary reference Carver Pump Company |
| AB722 1973 000 PIECE 22 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| AB722 1973 000 | D/9 Drawing number reference only Aurora Pump a Unit of General Signal Corp |
| AB722-1973-0000 PIECE 22 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 676 1890 000 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-01-198-5682 is a Ring,wearing, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-198-5682 has 2 manufacturer part numbers on file: AB722-1973-000-PIECE 22 (Carver Pump Company), 007-7101890-252 (Carver Pump Company).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-270-7884. Verify interchangeability with system specifications before substitution.
Key specifications for 007-7101890-252: Material Document and Classification: QQ-C-390,ALLOY NO. D5,TYPE I FED SPEC ALL MATERIAL RESPONSES; Material: COPPER ALLOY. 2 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.