PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

502576Ring,piston

Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp · NSN 4310-00-142-0754 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-142-0754 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-142-0754. Primary manufacturer part number: 502576.
Features
  • Ring,piston — FSC 4310
  • Material: IRON OVERALL
  • Radial Wall Thickness: 0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
  • Ring Style: CONCENTRIC
  • Standard Bore Diameter: 3.812 INCHES IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • Joint Style: STEP JOINT
  • 3 verified cross-references
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-142-0754, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-142-0754
Primary Part Number502576
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
StatusACTIVE
MaterialIRON OVERALL
Radial Wall Thickness0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
Ring StyleCONCENTRIC
Standard Bore Diameter3.812 INCHES IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Joint StyleSTEP JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6320-00-036-3681 INTERCHANGEABLE
Dial Assembly,inner
5950-00-060-5178152675 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon Co
5935-00-071-53507910387 INTERCHANGEABLE
Adapter,connector
Us Army Aviation and Missile Command
6625-00-133-4353595456-1 INTERCHANGEABLE
Tip,test Prod
Raytheon Company Dba Raytheon
6505-00-604-1224NDC00002-2062-02 INTERCHANGEABLE
Thiamine Hydrochloride Tablets
Eli Lilly and Company
8115-00-782-16951695 INTERCHANGEABLE
Box,shipping
Connecticut Container Corp. Dba Connecticut Container Corp
4810-01-053-78065027-56 INTERCHANGEABLE
Shaft
Parker-Hannifin Corporation Dba Pneutronics
4320-01-129-31051695 INTERCHANGEABLE
Deflector,dirt and Liquid
Summit Scientific Filtration Systems Inc
6780-01-144-5319 INTERCHANGEABLE
Camera and Accessory Set
3120-01-147-3998 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
1695 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
50276 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
502576 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Related Parts
6320-00-036-3681INTERCHANGEABLE
DIAL ASSEMBLY,INNER
5950-00-060-5178INTERCHANGEABLE
REACTOR
152675
5935-00-071-5350INTERCHANGEABLE
ADAPTER,CONNECTOR
7910387
6625-00-133-4353INTERCHANGEABLE
TIP,TEST PROD
595456-1
6505-00-604-1224INTERCHANGEABLE
THIAMINE HYDROCHLORIDE TABLETS
NDC00002-2062-02
8115-00-782-1695INTERCHANGEABLE
BOX,SHIPPING
1695
4810-01-053-7806INTERCHANGEABLE
SHAFT
5027-56
4320-01-129-3105INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
1695
6780-01-144-5319INTERCHANGEABLE
CAMERA AND ACCESSORY SET
3120-01-147-3998INTERCHANGEABLE
BEARING,SLEEVE
5310-01-163-2481INTERCHANGEABLE
WASHER,LOCK
1695
6540-01-212-3149INTERCHANGEABLE
PAD,OPHTHALMIC,FINISHING
1695M

Frequently Asked Questions

What is NSN 4310-00-142-0754?

NSN 4310-00-142-0754 is a Ring,piston, manufactured by Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-142-0754?

NSN 4310-00-142-0754 has 3 cross-referenced part numbers: 1695 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 50276 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 502576 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp).

What NSN replaces 4310-00-142-0754?

There are 12 known substitutes for 4310-00-142-0754: 6320-00-036-3681, 5950-00-060-5178, 5935-00-071-5350 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 502576?

Key specifications for 502576: Material: IRON OVERALL; Overall Width: 0.1355 INCHES NOMINAL IN; Radial Wall Thickness: 0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN; Ring Style: CONCENTRIC. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com