PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NK2136Orifice,valve

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 4730-01-191-2631 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-191-2631 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-191-2631. Primary manufacturer part number: NK2136.
Features
  • Orifice,valve — FSC 4730
  • General Characteristics Item Description: STAINLESS STEEL
  • 5 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Orifice,valve, cataloged under National Stock Number 4730-01-191-2631, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-191-2631
Primary Part NumberNK2136
Item NameOrifice,valve
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
General Characteristics Item DescriptionSTAINLESS STEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4820-00-100-3310NM0573-1 INTERCHANGEABLE
Piston,valve
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
4730-00-287-1614SAE J530 2-2 130138B INTERCHANGEABLE
Coupling,pipe
Sae International Dba Sae International
3040-01-205-2182 INTERCHANGEABLE
Shaft,valve,throttle
3020-01-207-0626 INTERCHANGEABLE
Gear,spur
3020-01-207-1151 INTERCHANGEABLE
Gear,spur
4820-01-410-6859S-1059 8IN INTERCHANGEABLE
Valve,throttle
Emerson Automation Solutions Final Control Us Lp
4820-01-465-8755 INTERCHANGEABLE
Flange,gland,valve
8105-01-493-7644S-1059 INTERCHANGEABLE
Desiccant Bag
Uline Inc
Cross-Reference Index
Part NumberManufacturer
NK2136 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
NK2136 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
NK2136 Dresser-Rand Company (USA)
S-1059 PIECE 70 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
S-1059 Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp (USA)
Related Parts
4820-00-100-3310INTERCHANGEABLE
PISTON,VALVE
NM0573-1
4730-00-287-1614INTERCHANGEABLE
COUPLING,PIPE
SAE J530 2-2 130138B
3040-01-205-2182INTERCHANGEABLE
SHAFT,VALVE,THROTTLE
3020-01-207-0626INTERCHANGEABLE
GEAR,SPUR
3020-01-207-1151INTERCHANGEABLE
GEAR,SPUR
4820-01-410-6859INTERCHANGEABLE
VALVE,THROTTLE
S-1059 8IN
4820-01-465-8755INTERCHANGEABLE
FLANGE,GLAND,VALVE
8105-01-493-7644INTERCHANGEABLE
DESICCANT BAG
S-1059

Frequently Asked Questions

What is NSN 4730-01-191-2631?

NSN 4730-01-191-2631 is a Orifice,valve, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-191-2631?

NSN 4730-01-191-2631 has 5 cross-referenced part numbers: NK2136 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), NK2136 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp), NK2136 (Dresser-Rand Company), S-1059 PIECE 70 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp), S-1059 (Pentair Valves & Controls Us Lp Div Flow Control Us Holding Corp).

What NSN replaces 4730-01-191-2631?

There are 8 known substitutes for 4730-01-191-2631: 4820-00-100-3310, 4730-00-287-1614, 3040-01-205-2182 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NK2136?

Key specifications for NK2136: General Characteristics Item Description: STAINLESS STEEL. 1 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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