The Ring,wearing, cataloged under National Stock Number 4320-01-397-7871, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-397-7871 |
| Primary Part Number | 008-07N-A01-303 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE |
| Surface Finish | 125.0 MICROINCHES LEFT FACE |
| Surface Finish | 63.0 MICROINCHES INSIDE |
| Surface Finish | 125.0 MICROINCHES RIGHT FACE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | PLAIN |
| Body Outside Diameter | 3.110 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-288,COND A FED SPEC 1ST MATERIAL RESPONSE |
| Body Inside Diameter | 2.740 INCHES NOMINAL IN |
| Material | NICKEL ALLOY AND 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 |
|---|---|
| 008-07N-A01-303 PRIMARY | Carver Pump Company (USA) |
| F-07N-0-96-012 ITEM 2 | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| F-07N-0-96-012 | D/9 Drawing number reference only Carver Pump Company |
| A-008-07N-A01-303 | 5/9 Secondary reference Carver Pump Company |
NSN 4320-01-397-7871 is a Ring,wearing, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-397-7871 has 2 manufacturer part numbers on file: 008-07N-A01-303 (Carver Pump Company), F-07N-0-96-012 ITEM 2 (Carver Pump Company).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-397-7872. Verify interchangeability with system specifications before substitution.
Key specifications for 008-07N-A01-303: Surface Finish: 125.0 MICROINCHES OUTSIDE; Surface Finish: 125.0 MICROINCHES LEFT FACE; Surface Finish: 63.0 MICROINCHES INSIDE; Surface Finish: 125.0 MICROINCHES RIGHT FACE. 10 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.