The Ring,wearing, cataloged under National Stock Number 4320-00-993-7374, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Weil Pump Co Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-993-7374 |
| Primary Part Number | N2670SP |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Weil Pump Co Inc |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | PLAIN |
| Body Outside Diameter | 5.000 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN |
| Body Inside Diameter | 4.495 INCHES MINIMUM AND 4.497 INCHES MAXIMUM IN |
| 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 |
|---|---|
| N2670SP PRIMARY | Weil Pump Co Inc (USA) |
| A-1211 PC 36F | Rps-Fl, Inc. Dba Rps Inc (USA) |
| L2230 PRIMARY | Rps-Fl, Inc. Dba Rps Inc (USA) |
| SMS-N2670SP PRIMARY | Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| A1722 | 5/9 Secondary reference Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc |
| A1722PC36SP | 5/9 Secondary reference Weil Pump Co Inc |
NSN 4320-00-993-7374 is a Ring,wearing, manufactured by Weil Pump Co Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-993-7374 has 4 manufacturer part numbers on file: N2670SP (Weil Pump Co Inc), A-1211 PC 36F (Rps-Fl, Inc. Dba Rps Inc), L2230 (Rps-Fl, Inc. Dba Rps Inc), SMS-N2670SP (Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-191-7953. Verify interchangeability with system specifications before substitution.
Key specifications for N2670SP: Corner Shape: SQUARE ALL CORNERS; Body Style: PLAIN; Body Outside Diameter: 5.000 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN; Overall Length: 0.687 INCHES NOMINAL IN. 5 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.