The Ring,wearing, cataloged under National Stock Number 4320-01-371-6750, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Velan Valve Corp.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-371-6750 |
| Primary Part Number | VS40-011PC13 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| 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 |
|---|---|
| QXXX-253-131 | Velan Valve Corp. (USA) |
| VS40-011PC13 PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 253 | 5/1 Secondary reference Parker Hannifin Corporation Div O-Ring Division |
| V400-012PC13 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| V400-012PC13 | 5/1 Secondary reference Velan Valve Corp. |
| V300-008PC13 | 5/1 Secondary reference Velan Valve Corp. |
| V300-008PC14 | 5/1 Secondary reference Velan Valve Corp. |
| 4253-366Y | 5/1 Secondary reference Minnesota Rubber Co |
NSN 4320-01-371-6750 is a Ring,wearing, manufactured by Velan Valve Corp., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-371-6750 has 2 manufacturer part numbers on file: QXXX-253-131 (Velan Valve Corp.), VS40-011PC13 (Velan Valve Corp.).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-379-9388. Verify interchangeability with system specifications before substitution.
Key specifications for VS40-011PC13: Part Name Assigned by Controlling Agency: RING,WEARING. 0 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.