The Ring,wearing, cataloged under National Stock Number 4320-00-237-3564, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-237-3564 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | GROOVED |
| Body Outside Diameter | 6.156 INCHES NOMINAL IN |
| Groove Depth | 0.156 INCHES NOMINAL IN |
| Distance From End to Groove Center | 0.234 INCHES NOMINAL IN |
| Groove Quantity | 3 |
| Body Inside Diameter | 5.594 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Groove Width | 0.156 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 |
| Reference | Meaning |
|---|---|
| H3324683 | 3/2 Design control — primary reference U.S. Government activity |
| 6761903211 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-00-237-3564 is a Ring,wearing, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-237-3564: Corner Shape: SQUARE ALL CORNERS; Body Style: GROOVED; Body Outside Diameter: 6.156 INCHES NOMINAL IN; Overall Length: 1.094 INCHES NOMINAL IN. 9 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.