The Ring,wearing, cataloged under National Stock Number 4320-00-902-1824, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-902-1824 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Flange Diameter | 2.842 INCHES NOMINAL IN |
| 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 | 0.125 INCHES NOMINAL OUTSIDE RIGHT CORNER IN |
| Body Style | EXTERNAL FLANGE |
| Body Outside Diameter | 2.374 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.296 INCHES NOMINAL IN |
| Body Inside Diameter | 1.907 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| 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 |
| Reference | Meaning |
|---|---|
| 2568 | 3/2 Design control — primary reference U.S. Government activity |
| CA11328PC11 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-00-902-1824 is a Ring,wearing, classified under FSC 4320, Power and Hand Pumps. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-076-7460, 5310-01-225-1318. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-902-1824: Flange Diameter: 2.842 INCHES NOMINAL IN; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER. 13 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.