PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B2556.001.123Disk,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-194-2167 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-194-2167 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-194-2167. Primary manufacturer part number: B2556.001.123.
Features
  • Disk,valve — FSC 4820
  • Material: COPPER ALLOY
  • Style Designator: POPPET
  • Temp Rating: 400.0 FAHRENHEIT NOMINAL DEGF
  • Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • 5 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-194-2167, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-194-2167
Primary Part NumberB2556.001.123
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialCOPPER ALLOY
Style DesignatorPOPPET
Temp Rating400.0 FAHRENHEIT NOMINAL DEGF
Pressure Rating150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5136-00-189-3218402290 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
5945-00-259-5423 INTERCHANGEABLE
Relay,electromagnetic
2920-01-145-035131-243 INTERCHANGEABLE
Switch,lock,ignition
Pollak Joseph Corp
Cross-Reference Index
Part NumberManufacturer
B2556.001.123 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
3118-3 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
B2556.001.123 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
3118-3.125 ITEM 2 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
3118-3.125 ITEM 2 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5136-00-189-3218INTERCHANGEABLE
DIE,THREAD CUTTING
402290
5945-00-259-5423INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
2920-01-145-0351INTERCHANGEABLE
SWITCH,LOCK,IGNITION
31-243

Frequently Asked Questions

What is NSN 4820-01-194-2167?

NSN 4820-01-194-2167 is a Disk,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-194-2167?

NSN 4820-01-194-2167 has 5 cross-referenced part numbers: B2556.001.123 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 3118-3 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), B2556.001.123 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 3118-3.125 ITEM 2 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 3118-3.125 ITEM 2 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-194-2167?

There are 3 known substitutes for 4820-01-194-2167: 5136-00-189-3218, 5945-00-259-5423, 2920-01-145-0351. Verify interchangeability with system specifications before substitution.

What are the specifications of B2556.001.123?

Key specifications for B2556.001.123: Material: COPPER ALLOY; Style Designator: POPPET; Temp Rating: 400.0 FAHRENHEIT NOMINAL DEGF; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS. 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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