The Ring,wearing, cataloged under National Stock Number 4320-01-337-7274, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-337-7274 |
| Primary Part Number | 723-0185-000 PIECE 16 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Body Style | PLAIN W/INTERNAL FLANGE |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE |
| Material | NICKEL 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 |
|---|---|
| 723-0185-000 PIECE 16 | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 723-0185-000 PIECE 16 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 676-1651-209 | 3/9 Design control — primary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-01-337-7274 is a Ring,wearing, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-337-7274 has 1 manufacturer part number on file: 723-0185-000 PIECE 16 (Carver Pump Company).
Key specifications for 723-0185-000 PIECE 16: Body Style: PLAIN W/INTERNAL FLANGE; Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE; Special Features: GUNMETAL ALLOY 903; IRREGULAR SHAPE W/NOTCHES ON SIDES AND TAPERED RAISED RINGS ON TOP; USED ON AURORA PUMP MODEL 135 DWG 723-0185-000; Material: NICKEL ALLOY. 3 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.