PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

188548Ring,piston

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 2810-00-037-6474 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-037-6474 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-037-6474. Primary manufacturer part number: 188548.
Features
  • Ring,piston — FSC 2810
  • FSC Application Data: ENGINE,AIRCRAFT,RECIPROCATING
  • Ring Style: CONCENTRIC
  • Material: IRON OVERALL
  • Radial Wall Thickness: 0.1750 INCHES MINIMUM AND 0.1850 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: DOUBLE INSIDE BEVEL, STRAIGHT RADII FACE
  • Joint Style: VERTICAL JOINT
  • Standard Bore Diameter: 5.750 INCHES IN
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2810-00-037-6474, is classified within Federal Supply Class 2810 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 7 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2810-00-037-6474
Primary Part Number188548
Item NameRing,piston
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
FSC Application DataENGINE,AIRCRAFT,RECIPROCATING
Ring StyleCONCENTRIC
MaterialIRON OVERALL
Radial Wall Thickness0.1750 INCHES MINIMUM AND 0.1850 INCHES MAXIMUM IN
Cross-Sectional Shape StyleDOUBLE INSIDE BEVEL, STRAIGHT RADII FACE
Joint StyleVERTICAL JOINT
Standard Bore Diameter5.750 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5960-00-059-3081123301 INTERCHANGEABLE
Electron Tube
L3harris Technologies, Inc Div Space & Airborne Systems
5915-00-804-4940 INTERCHANGEABLE
Filter,radio Frequency Interfere
5821-00-869-2357 INTERCHANGEABLE
Tension Unit
3110-01-536-475422208ES-TVPB INTERCHANGEABLE
Bearing,roller,tapered
Fag Bearings Corporation
5330-01-550-63351233-01 INTERCHANGEABLE
Gasket
U.s. Pioneer, L.l.c.
Cross-Reference Index
Part NumberManufacturer
188548 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
188548 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
123301 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
123301 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
5960-00-059-3081INTERCHANGEABLE
ELECTRON TUBE
123301
5915-00-804-4940INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5821-00-869-2357INTERCHANGEABLE
TENSION UNIT
3110-01-536-4754INTERCHANGEABLE
BEARING,ROLLER,TAPERED
22208ES-TVPB
5330-01-550-6335INTERCHANGEABLE
GASKET
1233-01

Frequently Asked Questions

What is NSN 2810-00-037-6474?

NSN 2810-00-037-6474 is a Ring,piston, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 2810 (No Item Name Available). Status: active.

What are the part numbers for NSN 2810-00-037-6474?

NSN 2810-00-037-6474 has 4 cross-referenced part numbers: 188548 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 188548 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 123301 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 123301 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 2810-00-037-6474?

There are 5 known substitutes for 2810-00-037-6474: 5960-00-059-3081, 5915-00-804-4940, 5821-00-869-2357 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 188548?

Key specifications for 188548: Overall Width: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN; FSC Application Data: ENGINE,AIRCRAFT,RECIPROCATING; Ring Style: CONCENTRIC; Material: IRON OVERALL. 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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