The Ring,wearing, cataloged under National Stock Number 4320-00-139-3956, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-139-3956 |
| Primary Part Number | 066-07685-000 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES LEFT FACE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE |
| Corner Shape | SQUARE ALL CORNERS |
| Material Document and Classification | MIL-B-16221,GR 3 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY |
| Body Inside Diameter | 5.607 INCHES MINIMUM AND 5.611 INCHES MAXIMUM IN |
| Body Style | PLAIN |
| Surface Finish | 125.0 MICROINCHES INSIDE |
| Surface Finish | 125.0 MICROINCHES RIGHT FACE |
| Body Outside Diameter | 6.000 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 066-07685-000 | Aqua-Chem, Inc. (USA) |
| 66-7685 | Aqua-Chem, Inc. (USA) |
| 66-7685US | Aqua-Chem, Inc. (USA) |
| 066-07685-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
NSN 4320-00-139-3956 is a Ring,wearing, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-139-3956 has 4 cross-referenced part numbers: 066-07685-000 (Aqua-Chem, Inc.), 66-7685 (Aqua-Chem, Inc.), 66-7685US (Aqua-Chem, Inc.), 066-07685-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
There is 1 known substitute for 4320-00-139-3956: 2940-00-423-0924. Verify interchangeability with system specifications before substitution.
Key specifications for 066-07685-000: Surface Finish: 125.0 MICROINCHES LEFT FACE; Surface Finish: 125.0 MICROINCHES OUTSIDE; Corner Shape: SQUARE ALL CORNERS; Material Document and Classification: MIL-B-16221,GR 3 MIL SPEC SINGLE MATERIAL RESPONSE. 11 total characteristics are documented in the Federal Logistics Information System.