The Ring,wearing, cataloged under National Stock Number 4320-00-604-2012, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-604-2012 |
| Primary Part Number | C226A |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | ROUND INSIDE RIGHT CORNER |
| Distance Between Flanges | 0.625 INCHES NOMINAL IN |
| Corner Radius | 0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN |
| Body Style | INTERNAL FLANGE W/EXTERNAL LOCKING FLANGE |
| Distance From End | 0.312 INCHES NOMINAL IN |
| Body Outside Diameter | 5.249 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN |
| End to Flange Distance | 0.813 INCHES NOMINAL IN |
| Internal Flange Inside Diameter | 3.625 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Distance Below Centerline | 0.062 INCHES NOMINAL IN |
| Body Inside Diameter | 4.486 INCHES MINIMUM AND 4.487 INCHES MAXIMUM IN |
| Right Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Smallest External Anchor Flange Radius | 2.563 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Internal Flange Width | 0.312 INCHES NOMINAL IN |
| Largest External Anchor Flange Radius | 2.812 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 |
|---|---|
| C226A PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| E11326 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
NSN 4320-00-604-2012 is a Ring,wearing, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-604-2012 has 1 manufacturer part number on file: C226A (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for C226A: Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: ROUND INSIDE RIGHT CORNER. 19 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.