The Ring,wearing, cataloged under National Stock Number 4320-00-399-6258, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-399-6258 |
| Primary Part Number | 255429-2 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Flange Diameter | 4.752 INCHES NOMINAL IN |
| Minor Outside Diameter | 4.127 INCHES NOMINAL IN |
| Center Flange Thickness | 0.625 INCHES NOMINAL IN |
| Corner Shape | SQUARE ALL CORNERS |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| End to Flange Distance | 0.188 INCHES NOMINAL IN |
| Body Inside Diameter | 3.725 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.986 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Bolt Hole Quantity | 2 |
| Body Outside Diameter | 4.248 INCHES NOMINAL IN |
| Body Style | EXTERNAL FLANGE |
| Mounting Hole Nominal Thread Size | 0.250 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1177P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL5695PC18 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 255429-2 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL5416APC5 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL6204PC18 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL5427PC33 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 3617P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL5429PC33 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 234301-1PH | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 255429-2 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 1170P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 16027 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 136719 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL6075PC18 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 47P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL4222PC5 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| H4320-399-6258 PRIMARY | Naval Ship Systems Command (USA) |
NSN 4320-00-399-6258 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-399-6258 has 17 cross-referenced part numbers: 1177P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL5695PC18 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 255429-2 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5416APC5 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL6204PC18 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 12 more.
There are 8 known substitutes for 4320-00-399-6258: 5935-00-204-8382, 5120-00-213-0612, 3455-00-224-1969 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 255429-2: Flange Diameter: 4.752 INCHES NOMINAL IN; Minor Outside Diameter: 4.127 INCHES NOMINAL IN; Center Flange Thickness: 0.625 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS. 14 total characteristics are documented in the Federal Logistics Information System.