PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AD14S49-51PC129Piston Valve

Naval Ship Systems Command · NSN 2825-00-337-1095 · FSC 2825 · No Item Name Available
Verified by PartsTable
NSN 2825-00-337-1095 — this item is cataloged by the U.S. Government under National Stock Number 2825-00-337-1095. Primary manufacturer part number: AD14S49-51PC129.
Features
  • Piston Valve — FSC 2825
  • 19 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston Valve, cataloged under National Stock Number 2825-00-337-1095, is classified within Federal Supply Class 2825 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Naval Ship Systems Command. This item has 19 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston Valve
FSC / FSG2825 — No Item Name Available (FSG 28)
ManufacturersNaval Ship Systems Command (CAGE 80064); Northrop Grumman Systems Corporation Div Marine Systems (CAGE 90099); Westinghouse Electric Corp Sturtevant Div (CAGE 80231); Westinghouse Electric Corp (CAGE 79500)
Technical Specifications
ParameterValue
NSN2825-00-337-1095
Primary Part NumberAD14S49-51PC129
Item NamePiston Valve
FSC / FSG2825 / 28 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-288-9785SAE J514-3 16-16 140230CA INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
1005-00-344-6320 INTERCHANGEABLE
Bolt
6670-00-515-5119 INTERCHANGEABLE
Forceps,analytical Balance Weigh
4820-00-752-9402633048-2 INTERCHANGEABLE
Valve,globe
Lockheed Martin Corp
4140-01-031-9523 INTERCHANGEABLE
Fan,ventilating
3110-01-172-195192000024 INTERCHANGEABLE
Bearing,roller,needle
Level 10 Industries, Inc. Div Level 10 Industries
5962-01-185-1558 INTERCHANGEABLE
Microcircuit,linear
9340-01-242-015711867 INTERCHANGEABLE
Window,observation
G.s. Blodgett, Llc Div Blodgett
5330-01-294-93108812 INTERCHANGEABLE
Gasket
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5340-01-432-0961 INTERCHANGEABLE
Lever,lock-Release
Cross-Reference Index
Part NumberManufacturer
AD14S49-51PC129 PRIMARY Naval Ship Systems Command (USA)
D15-427JPC129 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
8812 Westinghouse Electric Corp Sturtevant Div (USA)
8812 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-427FPC129 Westinghouse Electric Corp (USA)
D15-427IPC129 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-427IPC129 Westinghouse Electric Corp Sturtevant Div (USA)
D15-427JPC129 Westinghouse Electric Corp Sturtevant Div (USA)
AD14S49-47PC129 PRIMARY Naval Ship Systems Command (USA)
AD14S49-43PC129 PRIMARY Naval Ship Systems Command (USA)
AD14S49-50PC129 PRIMARY Naval Ship Systems Command (USA)
8812 Westinghouse Electric Corp (USA)
D15-427IPC129 Westinghouse Electric Corp (USA)
D15-427BPC129 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-427FPC129 Westinghouse Electric Corp Sturtevant Div (USA)
D15-427FPC129 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
D15-427BPC129 Westinghouse Electric Corp Sturtevant Div (USA)
D15-427BPC129 Westinghouse Electric Corp (USA)
D15-427JPC129 Westinghouse Electric Corp (USA)
Related Parts
4730-00-288-9785INTERCHANGEABLE
ELBOW,PIPE
SAE J514-3 16-16 140230CA
1005-00-344-6320INTERCHANGEABLE
BOLT
6670-00-515-5119INTERCHANGEABLE
FORCEPS,ANALYTICAL BALANCE WEIGH
4820-00-752-9402INTERCHANGEABLE
VALVE,GLOBE
633048-2
4140-01-031-9523INTERCHANGEABLE
FAN,VENTILATING
3110-01-172-1951INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
92000024
5962-01-185-1558INTERCHANGEABLE
MICROCIRCUIT,LINEAR
9340-01-242-0157INTERCHANGEABLE
WINDOW,OBSERVATION
11867
5330-01-294-9310INTERCHANGEABLE
GASKET
8812
5340-01-432-0961INTERCHANGEABLE
LEVER,LOCK-RELEASE
5340-01-462-7992INTERCHANGEABLE
LEVER,LOCK-RELEASE
241204K01
4240-01-532-6482INTERCHANGEABLE
RESPIRATOR,AIR FILTERING

Frequently Asked Questions

What is NSN 2825-00-337-1095?

NSN 2825-00-337-1095 is a Piston Valve, manufactured by Naval Ship Systems Command, classified under FSC 2825 (No Item Name Available). Status: active.

What are the part numbers for NSN 2825-00-337-1095?

NSN 2825-00-337-1095 has 19 cross-referenced part numbers: AD14S49-51PC129 (Naval Ship Systems Command), D15-427JPC129 (Northrop Grumman Systems Corporation Div Marine Systems), 8812 (Westinghouse Electric Corp Sturtevant Div), 8812 (Northrop Grumman Systems Corporation Div Marine Systems), D15-427FPC129 (Westinghouse Electric Corp) and 14 more.

What NSN replaces 2825-00-337-1095?

There are 12 known substitutes for 2825-00-337-1095: 4730-00-288-9785, 1005-00-344-6320, 6670-00-515-5119 and 9 more. Verify interchangeability with system specifications before substitution.

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