The Ring,wearing, cataloged under National Stock Number 4320-00-034-5035, 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 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-034-5035 |
| Primary Part Number | 17616P |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Flange Diameter | 7.375 INCHES NOMINAL IN |
| Distance Between Flanges | 0.550 INCHES NOMINAL IN |
| Distance From End | 0.375 INCHES NOMINAL IN |
| Body Outside Diameter | 6.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,CLASS 410,COND A MIL SPEC SINGLE MATERIAL RESPONSE |
| Internal Flange Inside Diameter | 4.188 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.264 INCHES NOMINAL IN |
| Distance Below Centerline | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 5.388 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.264 INCHES NOMINAL IN |
| Material | STEEL |
| Largest External Anchor Flange Radius | 3.688 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 |
| Part Number | Manufacturer |
|---|---|
| RY-123505 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 17616P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 17616P | 3/9 Design control — primary reference U.S. Government activity |
| RY-123505 | 5/9 Secondary reference U.S. Government activity |
| 10213 | 5/9 Secondary reference Rps-Fl, Inc. Dba Rps Inc |
NSN 4320-00-034-5035 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-034-5035 has 2 manufacturer part numbers on file: RY-123505 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 17616P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 17616P: Flange Diameter: 7.375 INCHES NOMINAL IN; Distance Between Flanges: 0.550 INCHES NOMINAL IN; Distance From End: 0.375 INCHES NOMINAL IN; Body Outside Diameter: 6.250 INCHES NOMINAL IN. 12 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.