The Ring,wearing, cataloged under National Stock Number 4320-01-428-7610, 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 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-428-7610 |
| Primary Part Number | 007-04-003-275 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | PLAIN |
| Body Outside Diameter | 4.137 INCHES NOMINAL IN |
| Material Document and Classification | ASTM-B505,C93400,ALLOY 934 ASSN STD SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 3.548 INCHES NOMINAL IN |
| Material | COPPER ALLOY 934 |
| 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 |
|---|---|
| 007-04-003-275 | Mckenna Engineering & Equipment Company, Inc. (USA) |
| 999-2005-0-25 REV 1 ITEM 7B | Carver Pump Company (USA) |
| 007-04-003-275 PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 999-2005-0-25 | 5/1 Secondary reference Carver Pump Company |
NSN 4320-01-428-7610 is a Ring,wearing, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-428-7610 has 3 manufacturer part numbers on file: 007-04-003-275 (Mckenna Engineering & Equipment Company, Inc.), 999-2005-0-25 REV 1 ITEM 7B (Carver Pump Company), 007-04-003-275 (Carver Pump Company).
5 possible matches (shared part number, not a government interchangeability claim): 4320-01-428-8833, 4320-01-428-8837, 4320-01-428-8844. Verify interchangeability with system specifications before substitution.
Key specifications for 007-04-003-275: Corner Shape: SQUARE ALL CORNERS; Body Style: PLAIN; Body Outside Diameter: 4.137 INCHES NOMINAL IN; Material Document and Classification: ASTM-B505,C93400,ALLOY 934 ASSN STD SINGLE MATERIAL RESPONSE. 6 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.