The Ring,piston, cataloged under National Stock Number 4310-00-851-3068, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4310-00-851-3068 |
| Primary Part Number | D25168 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — No Item Name Available |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | CANCELLED |
| Surface Treatment | CHROMIUM OVERALL |
| FSC Application Data | PISTON,VALVE,REGULATING,FLUID PRESSURE |
| Material | IRON OVERALL |
| Standard Bore Diameter | 1.625 INCHES IN |
| Joint Style | VERTICAL JOINT |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Ring Style | CONCENTRIC |
| Radial Wall Thickness | 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4310-00-851-3068 is a Ring,piston, manufactured by Hunt Valve Company, Inc., classified under FSC 4310 (No Item Name Available). Status: cancelled.
NSN 4310-00-851-3068 has 5 cross-referenced part numbers: D25168 (Hunt Valve Company, Inc.), D25168 (Hammel Dahl Inc), 8D18113M (National Circuits Inc), D25168 (Hunt Valve Company Inc Dba Union Flonetics), 9D18113M (Goldline Laboratories, Inc. Dba Goldline Laboratories).
There is 1 known substitute for 4310-00-851-3068: 5310-00-444-6450. Verify interchangeability with system specifications before substitution.
Key specifications for D25168: Surface Treatment: CHROMIUM OVERALL; FSC Application Data: PISTON,VALVE,REGULATING,FLUID PRESSURE; Material: IRON OVERALL; Standard Bore Diameter: 1.625 INCHES IN. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4310-00-851-3068 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.