PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Z3343B4Diaphragm,valve,flat

Xomox Corp Sub of Emerson Electric Co · NSN 4820-00-217-9223 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-217-9223 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-217-9223. Primary manufacturer part number: Z3343B4.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 4 verified cross-references
  • Primary manufacturer: Xomox Corp Sub of Emerson Electric Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-217-9223, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Xomox Corp Sub of Emerson Electric Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-217-9223
Primary Part NumberZ3343B4
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerXomox Corp Sub of Emerson Electric Co
StatusCANCELLED
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2920-01-155-36023871348 INTERCHANGEABLE
Switch,engine Brake
Jacobs Mfg Co the
4820-01-220-7082 INTERCHANGEABLE
Diaphragm,valve,flat
Cross-Reference Index
Part NumberManufacturer
Z3343B4 Xomox Corp Sub of Emerson Electric Co (USA)
012388 Xomox Corp Sub of Emerson Electric Co (USA)
012388 Tufline Div of Xomox Corp (USA)
Z-3343-B PIECE 4 Xomox Corp Sub of Emerson Electric Co (USA)
Related Parts
2920-01-155-3602INTERCHANGEABLE
SWITCH,ENGINE BRAKE
3871348
4820-01-220-7082INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT

Frequently Asked Questions

What is NSN 4820-00-217-9223?

NSN 4820-00-217-9223 is a Diaphragm,valve,flat, manufactured by Xomox Corp Sub of Emerson Electric Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-217-9223?

NSN 4820-00-217-9223 has 4 cross-referenced part numbers: Z3343B4 (Xomox Corp Sub of Emerson Electric Co), 012388 (Xomox Corp Sub of Emerson Electric Co), 012388 (Tufline Div of Xomox Corp), Z-3343-B PIECE 4 (Xomox Corp Sub of Emerson Electric Co).

What NSN replaces 4820-00-217-9223?

There are 2 known substitutes for 4820-00-217-9223: 2920-01-155-3602, 4820-01-220-7082. Verify interchangeability with system specifications before substitution.

What are the specifications of Z3343B4?

Key specifications for Z3343B4: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-217-9223 still in active supply?

NSN 4820-00-217-9223 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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