The Ring,wearing, cataloged under National Stock Number 4320-00-398-5986, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-398-5986 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Distance Between Flanges | 0.312 INCHES NOMINAL IN |
| Distance From End | 0.219 INCHES NOMINAL IN |
| Body Outside Diameter | 2.748 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Left Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| Distance Below Centerline | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 2.375 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Smallest External Anchor Flange Radius | 1.312 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Largest External Anchor Flange Radius | 1.625 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 |
|---|---|
| CA6304K13-1 | 3/2 Design control — primary reference U.S. Government activity |
| CA6304-13-1 | 3/2 Design control — primary reference U.S. Government activity |
| CA6304PC13US | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-00-398-5986 is a Ring,wearing, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-398-5986: Corner Shape: SQUARE ALL CORNERS; Distance Between Flanges: 0.312 INCHES NOMINAL IN; Distance From End: 0.219 INCHES NOMINAL IN; Body Outside Diameter: 2.748 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN. 11 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.