The Ring,wearing, cataloged under National Stock Number 4320-01-416-4582, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps). Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-416-4582 |
| Primary Part Number | W2-12000-500 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) |
| Status | ACTIVE |
| Body Outside Diameter | 12.000 INCHES NOMINAL IN |
| Body Inside Diameter | 11.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| W2-12000-500 PRIMARY | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) (USA) |
| 211077012 | Naval Sea Systems Command (USA) |
| 6405732 FIND 39 | Naval Sea Systems Command (USA) |
NSN 4320-01-416-4582 is a Ring,wearing, manufactured by Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps), classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-416-4582 has 3 manufacturer part numbers on file: W2-12000-500 (Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)), 211077012 (Naval Sea Systems Command), 6405732 FIND 39 (Naval Sea Systems Command).
Key specifications for W2-12000-500: Body Outside Diameter: 12.000 INCHES NOMINAL IN; Overall Length: 0.500 INCHES NOMINAL IN; Body Inside Diameter: 11.750 INCHES NOMINAL IN; Special Features: MOLYGARD. 2 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.