PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NH7472PC53Disk,valve

Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture · NSN 4820-00-056-2422 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-056-2422 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-056-2422. Primary manufacturer part number: NH7472PC53.
Features
  • Disk,valve — FSC 4820
  • Media for Which Designed: STEAM
  • Temp Rating: 240.0 FAHRENHEIT NOMINAL DEGF
  • Material Document and Classification: QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 303
  • 12 verified cross-references
  • Primary manufacturer: Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-056-2422, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-056-2422
Primary Part NumberNH7472PC53
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
StatusACTIVE
Media for Which DesignedSTEAM
Temp Rating240.0 FAHRENHEIT NOMINAL DEGF
Material Document and ClassificationQQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 303
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-00-056-2417 INTERCHANGEABLE
Weight,counterbalance
5977-00-325-6507B2074 INTERCHANGEABLE
Brush,electrical Contact
Kollmorgen Corp
3110-00-554-2905102668-28 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2825-00-938-3343 INTERCHANGEABLE
Ring,carbon
Cross-Reference Index
Part NumberManufacturer
NH7472PC53 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
916105 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
A2074 Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA)
916105 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
H7970PC53 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
A2074 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
NH-7472 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
916105 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
N53A2074 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
N53A2074 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
N53A2074 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
H5797PC53 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
Related Parts
3040-00-056-2417INTERCHANGEABLE
WEIGHT,COUNTERBALANCE
5977-00-325-6507INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
B2074
3110-00-554-2905INTERCHANGEABLE
BEARING,BALL,ANNULAR
102668-28
2825-00-938-3343INTERCHANGEABLE
RING,CARBON

Frequently Asked Questions

What is NSN 4820-00-056-2422?

NSN 4820-00-056-2422 is a Disk,valve, manufactured by Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-056-2422?

NSN 4820-00-056-2422 has 12 cross-referenced part numbers: NH7472PC53 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), 916105 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), A2074 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp), 916105 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), H7970PC53 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture) and 7 more.

What NSN replaces 4820-00-056-2422?

There are 4 known substitutes for 4820-00-056-2422: 3040-00-056-2417, 5977-00-325-6507, 3110-00-554-2905 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NH7472PC53?

Key specifications for NH7472PC53: Media for Which Designed: STEAM; Temp Rating: 240.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE; Material: STEEL COMP 303. 4 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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