The Ring,wearing, cataloged under National Stock Number 4320-01-406-9680, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Minnesota Rubber Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,wearing |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Minnesota Rubber Co (CAGE 07322); Parker Hannifin Corporation Div O-Ring Division (CAGE 25184) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-406-9680 |
| Primary Part Number | Q4237-366Y |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Minnesota Rubber Co |
| 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 |
|---|---|
| Q4237-366Y | Minnesota Rubber Co (USA) |
| 237 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| V300-008 PIECE 14 | 3/1 Design control — primary reference Velan Valve Corp. |
| V300-008 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4320-01-406-9680 is a Ring,wearing, manufactured by Minnesota Rubber Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-406-9680 has 2 manufacturer part numbers on file: Q4237-366Y (Minnesota Rubber Co), 237 (Parker Hannifin Corporation Div O-Ring Division).
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-406-9799, 4320-01-406-9824, 4820-01-408-1588. Verify interchangeability with system specifications before substitution.
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.