The Ring,wearing, cataloged under National Stock Number 4320-00-082-0575, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-082-0575 |
| Primary Part Number | Y247488 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE |
| Surface Finish | 125.0 MICROINCHES LEFT FACE |
| Surface Finish | 125.0 MICROINCHES INSIDE |
| Surface Finish | 125.0 MICROINCHES RIGHT FACE |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Chamfer Length | 0.062 INCHES NOMINAL INSIDE RIGHT CORNER IN |
| Body Style | PLAIN |
| Body Outside Diameter | 5.503 INCHES MINIMUM AND 5.504 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 5.004 INCHES MINIMUM AND 5.006 INCHES MAXIMUM IN |
| Chamfer Angle | 45.0 DEGREES NOMINAL INSIDE 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 |
| Part Number | Manufacturer |
|---|---|
| Y247488 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Y3HMT4BX12-280 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| Y3HMT4BX12-280 | 5/9 Secondary reference Ingersoll Rand Co |
| Y247488 | 5/9 Secondary reference U.S. Government activity |
| Y247488 | 5/9 Secondary reference Ingersoll Rand Co |
| Y3HMT4BX12-280 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-082-0575 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-082-0575 has 2 manufacturer part numbers on file: Y247488 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), Y3HMT4BX12-280 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for Y247488: Surface Finish: 125.0 MICROINCHES OUTSIDE; Surface Finish: 125.0 MICROINCHES LEFT FACE; Surface Finish: 125.0 MICROINCHES INSIDE; Surface Finish: 125.0 MICROINCHES RIGHT FACE. 15 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.