PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-C1603-12PRing,piston

Rix Industries · NSN 4310-01-377-6825 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-377-6825 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-377-6825. Primary manufacturer part number: 18-C1603-12P.
Features
  • Ring,piston — FSC 4310
  • Joint Style: DIAGONAL JOINT
  • Material: PLASTIC OVERALL
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.1040 INCHES MINIMUM AND 0.1060 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Rix Industries
Applications
  • Applications requiring Plastic Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-01-377-6825, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rix Industries. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-01-377-6825
Primary Part Number18-C1603-12P
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerRix Industries
StatusACTIVE
Joint StyleDIAGONAL JOINT
MaterialPLASTIC OVERALL
Ring StyleCONCENTRIC
Radial Wall Thickness0.1040 INCHES MINIMUM AND 0.1060 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
1650-00-242-9425 INTERCHANGEABLE
Filter Element,fluid
Cross-Reference Index
Part NumberManufacturer
C1603 Rix Industries (USA)
18-C1603-12P PRIMARY Rix Industries (USA)
Related Parts
1650-00-242-9425INTERCHANGEABLE
FILTER ELEMENT,FLUID

Frequently Asked Questions

What is NSN 4310-01-377-6825?

NSN 4310-01-377-6825 is a Ring,piston, manufactured by Rix Industries, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-377-6825?

NSN 4310-01-377-6825 has 2 cross-referenced part numbers: C1603 (Rix Industries), 18-C1603-12P (Rix Industries).

What NSN replaces 4310-01-377-6825?

There is 1 known substitute for 4310-01-377-6825: 1650-00-242-9425. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-C1603-12P?

Key specifications for 18-C1603-12P: Joint Style: DIAGONAL JOINT; Overall Width: 1.4900 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Special Features: INSIDE DIAMETER O,975IN, MIN TO 0,985IN, MAX; CYLINDER DIA 1.500IN. IN; Material: PLASTIC OVERALL. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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