PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7140Ring Set,piston

Muskegon Piston Ring Co Muskegon Products Div · NSN 2815-00-555-5933 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-555-5933 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-555-5933. Primary manufacturer part number: 7140.
Features
  • Ring Set,piston — FSC 2815
  • Piston Accommodation Quantity: 1
  • Standard Bore Diameter: 4.312 INCHES IN
  • Ring Set Component Parts: COMPRESSION RING,TD427A301CS,73471,1,COMPRESSION RING,D600A311CS,2,OIL RING,TD427A302CS,73471,1,OIL RING,T427A312CS,73471,1
  • 4 verified cross-references
  • Primary manufacturer: Muskegon Piston Ring Co Muskegon Products Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 2815-00-555-5933, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Muskegon Piston Ring Co Muskegon Products Div. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2815-00-555-5933
Primary Part Number7140
Item NameRing Set,piston
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerMuskegon Piston Ring Co Muskegon Products Div
StatusCANCELLED
Piston Accommodation Quantity1
Standard Bore Diameter4.312 INCHES IN
Ring Set Component PartsCOMPRESSION RING,TD427A301CS,73471,1,COMPRESSION RING,D600A311CS,2,OIL RING,TD427A302CS,73471,1,OIL RING,T427A312CS,73471,1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-192-65560165-7 INTERCHANGEABLE
Terminal Board
Lockheed Martin Corporation Div Rms - Mitchel Field
2910-00-358-5101 INTERCHANGEABLE
Pin
5935-00-401-57587140 INTERCHANGEABLE
Connector,plug,electrical
Mag Aerospace Industries, Llc Div Safran Cabins
5310-00-579-46547140 INTERCHANGEABLE
Washer,lock
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5998-00-936-2632 INTERCHANGEABLE
Circuit Card Assembly
5940-00-983-6048 INTERCHANGEABLE
Terminal Board
5995-00-995-56897140 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Spencer Industries Inc
4810-01-210-026735A-AAA-DABA-1CM INTERCHANGEABLE
Valve,solenoid
Edro Corporation, the Dba Edro Corp
5306-01-237-684412354223 INTERCHANGEABLE
Bolt,ribbed Shoulder
U S Army Tank Automotive Command Amsta-Im-Mm
4820-01-559-0157 INTERCHANGEABLE
Valve,relief,pressure and Temper
Cross-Reference Index
Part NumberManufacturer
7140 Muskegon Piston Ring Co Muskegon Products Div (USA)
TD600T103CS1 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
2C5098S Hastings Manufacturing Co Div Hastings Manufacturing Company (USA)
CT9-5098S1 Hastings Manufacturing Co Div Hastings Manufacturing Company (USA)
Related Parts
5940-00-192-6556INTERCHANGEABLE
TERMINAL BOARD
0165-7
2910-00-358-5101INTERCHANGEABLE
PIN
5935-00-401-5758INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
7140
5310-00-579-4654INTERCHANGEABLE
WASHER,LOCK
7140
5998-00-936-2632INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5940-00-983-6048INTERCHANGEABLE
TERMINAL BOARD
5995-00-995-5689INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
7140
4810-01-210-0267INTERCHANGEABLE
VALVE,SOLENOID
35A-AAA-DABA-1CM
5306-01-237-6844INTERCHANGEABLE
BOLT,RIBBED SHOULDER
12354223
4820-01-559-0157INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
5340-01-656-6804INTERCHANGEABLE
HUB,BODY
71-40
5925-01-665-3810INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 2815-00-555-5933?

NSN 2815-00-555-5933 is a Ring Set,piston, manufactured by Muskegon Piston Ring Co Muskegon Products Div, classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-555-5933?

NSN 2815-00-555-5933 has 4 cross-referenced part numbers: 7140 (Muskegon Piston Ring Co Muskegon Products Div), TD600T103CS1 (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc), 2C5098S (Hastings Manufacturing Co Div Hastings Manufacturing Company), CT9-5098S1 (Hastings Manufacturing Co Div Hastings Manufacturing Company).

What NSN replaces 2815-00-555-5933?

There are 12 known substitutes for 2815-00-555-5933: 5940-00-192-6556, 2910-00-358-5101, 5935-00-401-5758 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7140?

Key specifications for 7140: Piston Accommodation Quantity: 1; Standard Bore Diameter: 4.312 INCHES IN; Ring Set Component Parts: COMPRESSION RING,TD427A301CS,73471,1,COMPRESSION RING,D600A311CS,2,OIL RING,TD427A302CS,73471,1,OIL RING,T427A312CS,73471,1. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-555-5933 still in active supply?

NSN 2815-00-555-5933 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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