The Ring,wearing, cataloged under National Stock Number 4320-01-024-1342, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Dolphin Machine, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-024-1342 |
| Primary Part Number | DA103-7 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Dolphin Machine, Llc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Chamfer Length | 0.060 INCHES NOMINAL OUTSIDE LEFT CORNER IN |
| Body Style | PLAIN |
| Body Outside Diameter | 5.058 INCHES NOMINAL IN |
| Body Inside Diameter | 4.059 INCHES NOMINAL IN |
| Chamfer Angle | 30.0 DEGREES NOMINAL OUTSIDE LEFT CORNER |
| Material | STEEL |
| 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 |
|---|---|
| DA103-7 | Dolphin Machine, Llc (USA) |
| Reference | Meaning |
|---|---|
| 395791-00 | 3/9 Design control — primary reference U.S. Government activity |
| YW-100580 | 5/9 Secondary reference U.S. Government activity |
| 395791-00 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 4320-01-024-1342 is a Ring,wearing, manufactured by Dolphin Machine, Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-024-1342 has 1 manufacturer part number on file: DA103-7 (Dolphin Machine, Llc).
Key specifications for DA103-7: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER. 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.