PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13681Ring,piston

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 2810-00-306-6512 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-306-6512 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-306-6512. Primary manufacturer part number: 13681.
Features
  • Ring,piston — FSC 2810
  • Material: IRON OVERALL
  • Joint Style: VERTICAL JOINT
  • Radial Wall Thickness: 0.2000 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: BEVELED FACE, UPPER
  • Standard Bore Diameter: 5.187 INCHES IN
  • Ring Style: CONCENTRIC
  • FSC Application Data: ENGINE,AIRCRAFT,RECIPROCATING
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2810-00-306-6512, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2810-00-306-6512
Primary Part Number13681
Item NameRing,piston
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
MaterialIRON OVERALL
Joint StyleVERTICAL JOINT
Radial Wall Thickness0.2000 INCHES NOMINAL IN
Cross-Sectional Shape StyleBEVELED FACE, UPPER
Standard Bore Diameter5.187 INCHES IN
Ring StyleCONCENTRIC
FSC Application DataENGINE,AIRCRAFT,RECIPROCATING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1730-00-232-097913681 INTERCHANGEABLE
Weldment,platform
Time Manufacturing Company Dba Time Manufacturing Company
5330-00-401-524724371 INTERCHANGEABLE
Gasket Set
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
1660-00-485-312413681 INTERCHANGEABLE
Valve
Honeywell International, Inc Div Aerospace-Tucson
5950-00-727-4668SMC502618-2 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5815-00-888-072113681 INTERCHANGEABLE
Spacer
Telemechanics Inc
3120-01-022-7858 INTERCHANGEABLE
Bearing
3030-01-129-775413681 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5950-01-174-8605990-604-92 INTERCHANGEABLE
Reactor
Ametek Programmable Power, Inc.
4720-01-354-0340F3010639-6-6-6-44 29/64 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5998-01-363-5043 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
13681 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
13681 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
1730-00-232-0979INTERCHANGEABLE
WELDMENT,PLATFORM
13681
5330-00-401-5247INTERCHANGEABLE
GASKET SET
24371
1660-00-485-3124INTERCHANGEABLE
VALVE
13681
5950-00-727-4668INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SMC502618-2
5815-00-888-0721INTERCHANGEABLE
SPACER
13681
3120-01-022-7858INTERCHANGEABLE
BEARING
3030-01-129-7754INTERCHANGEABLE
BELT,V
13681
5950-01-174-8605INTERCHANGEABLE
REACTOR
990-604-92
4720-01-354-0340INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
F3010639-6-6-6-44 29/64
5998-01-363-5043INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
1005-01-628-4454INTERCHANGEABLE
BARREL,RIFLE
13681

Frequently Asked Questions

What is NSN 2810-00-306-6512?

NSN 2810-00-306-6512 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 2810-00-306-6512?

NSN 2810-00-306-6512 has 2 cross-referenced part numbers: 13681 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 13681 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 2810-00-306-6512?

There are 11 known substitutes for 2810-00-306-6512: 1730-00-232-0979, 5330-00-401-5247, 1660-00-485-3124 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13681?

Key specifications for 13681: Material: IRON OVERALL; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.2000 INCHES NOMINAL IN; Cross-Sectional Shape Style: BEVELED FACE, UPPER. 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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