The Ring,wearing, cataloged under National Stock Number 4320-01-392-9825, 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 6 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-392-9825 |
| Primary Part Number | 403328-00 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Body Style | PLAIN |
| Body Outside Diameter | 8.3750 INCHES NOMINAL IN |
| Supplementary Features | MFGR MATL CODE C93400 |
| Material Document and Classification | QQ-C-390A FED SPEC SINGLE MATERIAL RESPONSE A |
| Body Inside Diameter | 7.8281 INCHES NOMINAL IN |
| Material | COPPER ALLOY OR COPPER ALLOY 934 |
| 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 |
|---|---|
| 403328-00 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| RY-180239 ITEM 5.3 | 5/9 Secondary reference U.S. Government activity |
| RY-180239 ITEM 3.2 | 5/9 Secondary reference U.S. Government activity |
| 403328-00 | 3/9 Design control — primary reference U.S. Government activity |
| RY-180239 | D/9 Drawing number reference only U.S. Government activity |
| RY-180239 ITEM 1.2 | 5/9 Secondary reference U.S. Government activity |
| RY-180239 ITEM 4.3 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-392-9825 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-392-9825 has 1 manufacturer part number on file: 403328-00 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 403328-00: Body Style: PLAIN; Body Outside Diameter: 8.3750 INCHES NOMINAL IN; Supplementary Features: MFGR MATL CODE C93400; Material Document and Classification: QQ-C-390A FED SPEC SINGLE MATERIAL RESPONSE A. 6 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.