The Ring,wearing, cataloged under National Stock Number 4320-00-398-8178, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-398-8178 |
| Primary Part Number | 302657 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Material | COPPER ALLOY |
| Unthreaded Mounting Hole Diameter | 0.094 INCHES NOMINAL IN |
| Bolt Circle Diameter | 6.875 INCHES NOMINAL IN |
| Corner Shape | SQUARE ALL CORNERS |
| Bolt Hole Quantity | 8 |
| Body Outside Diameter | 6.435 INCHES NOMINAL IN |
| Counterbore Diameter | 0.438 INCHES NOMINAL IN |
| Counterbore Depth | 0.281 INCHES NOMINAL IN |
| Body Inside Diameter | 5.875 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.437 INCHES NOMINAL IN |
| Flange Diameter | 7.468 INCHES NOMINAL IN |
| Body Style | EXTERNAL FLANGE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SL5661PC6A | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 302657 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL5892PC6A | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL5892PC6A | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 1P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 10975 | Rps-Fl, Inc. Dba Rps Inc (USA) |
| 302657 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
NSN 4320-00-398-8178 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-398-8178 has 7 cross-referenced part numbers: SL5661PC6A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 302657 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL5892PC6A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL5892PC6A (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 1P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 2 more.
There are 11 known substitutes for 4320-00-398-8178: 5133-00-203-6472, 5340-00-358-4283, 6760-00-451-5448 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 302657: Material: COPPER ALLOY; Unthreaded Mounting Hole Diameter: 0.094 INCHES NOMINAL IN; Bolt Circle Diameter: 6.875 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS. 13 total characteristics are documented in the Federal Logistics Information System.