PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y1029A2PC38Ring,piston

Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp · NSN 2805-00-273-0464 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-273-0464 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-273-0464. Primary manufacturer part number: Y1029A2PC38.
Features
  • Ring,piston — FSC 2805
  • Radial Wall Thickness: 0.2050 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • Standard Bore Diameter: 0.875 INCHES IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • FSC Application Data: SHIP CONTROL CONSOLE
  • Joint Style: STEP JOINT
  • Material: COPPER ALLOY OVERALL
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-273-0464, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-273-0464
Primary Part NumberY1029A2PC38
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
StatusACTIVE
Radial Wall Thickness0.2050 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Standard Bore Diameter0.875 INCHES IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
FSC Application DataSHIP CONTROL CONSOLE
Joint StyleSTEP JOINT
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5315-00-619-7591A3-25 INTERCHANGEABLE
Pin,straight,headless
Roller Bearing Co of America, Inc Div Pic Design
5940-00-926-9850 INTERCHANGEABLE
Terminal,stud
6240-01-562-920127534 INTERCHANGEABLE
Lamp,glow
Willard Marine, Inc.
Cross-Reference Index
Part NumberManufacturer
Y1029C2PC38 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
27534 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Y1029A2PC38 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Y1029C1PC38 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Related Parts
5315-00-619-7591INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
A3-25
5940-00-926-9850INTERCHANGEABLE
TERMINAL,STUD
6240-01-562-9201INTERCHANGEABLE
LAMP,GLOW
27534

Frequently Asked Questions

What is NSN 2805-00-273-0464?

NSN 2805-00-273-0464 is a Ring,piston, manufactured by Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-273-0464?

NSN 2805-00-273-0464 has 4 cross-referenced part numbers: Y1029C2PC38 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 27534 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), Y1029A2PC38 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), Y1029C1PC38 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp).

What NSN replaces 2805-00-273-0464?

There are 3 known substitutes for 2805-00-273-0464: 5315-00-619-7591, 5940-00-926-9850, 6240-01-562-9201. Verify interchangeability with system specifications before substitution.

What are the specifications of Y1029A2PC38?

Key specifications for Y1029A2PC38: Radial Wall Thickness: 0.2050 INCHES NOMINAL IN; Ring Style: CONCENTRIC; Standard Bore Diameter: 0.875 INCHES IN; Overall Width: 0.1040 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN. 8 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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