The Ring,wearing, cataloged under National Stock Number 4320-00-220-2131, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Clyde Pumps Ltd. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-220-2131 |
| Primary Part Number | R606 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Clyde Pumps Ltd |
| Status | ACTIVE |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Chamfer Length | 0.062 INCHES NOMINAL OUTSIDE RIGHT CORNER IN |
| Body Style | PLAIN |
| Body Outside Diameter | 4.253 INCHES MINIMUM AND 4.254 INCHES MAXIMUM IN |
| Body Inside Diameter | 3.750 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN |
| Chamfer Angle | 45.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER |
| 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 |
|---|---|
| R606 PRIMARY | Clyde Pumps Ltd (GBR) |
| A17612ITEM17 | Clyde Pumps Ltd (GBR) |
NSN 4320-00-220-2131 is a Ring,wearing, manufactured by Clyde Pumps Ltd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-220-2131 has 2 manufacturer part numbers on file: R606 (Clyde Pumps Ltd), A17612ITEM17 (Clyde Pumps Ltd).
Key specifications for R606: Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER. 10 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.