PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

230-186Poppet Assembly,valve

Mcc Powers Process Controls Div of Mark Controls Corp · NSN 4820-00-406-8978 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-406-8978 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-406-8978. Primary manufacturer part number: 230-186.
Features
  • Poppet Assembly,valve — FSC 4820
  • General Characteristics Item Description: BRASS,CONSISTS OF 91424 230-204 SCREW 1,91424 230-183 PLUNGER DISC 1,91424 230-184 STEM 1,91424 230-185 CUP 1
  • 1 verified cross-reference
  • Primary manufacturer: Mcc Powers Process Controls Div of Mark Controls Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Poppet Assembly,valve, cataloged under National Stock Number 4820-00-406-8978, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mcc Powers Process Controls Div of Mark Controls Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-406-8978
Primary Part Number230-186
Item NamePoppet Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMcc Powers Process Controls Div of Mark Controls Corp
StatusACTIVE
General Characteristics Item DescriptionBRASS,CONSISTS OF 91424 230-204 SCREW 1,91424 230-183 PLUNGER DISC 1,91424 230-184 STEM 1,91424 230-185 CUP 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5955-01-070-0640230186 INTERCHANGEABLE
Oscillator,noncrystal Controlled
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
Cross-Reference Index
Part NumberManufacturer
230-186 Mcc Powers Process Controls Div of Mark Controls Corp (USA)
Related Parts
5955-01-070-0640INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
230186

Frequently Asked Questions

What is NSN 4820-00-406-8978?

NSN 4820-00-406-8978 is a Poppet Assembly,valve, manufactured by Mcc Powers Process Controls Div of Mark Controls Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-406-8978?

NSN 4820-00-406-8978 has 1 cross-referenced part number: 230-186 (Mcc Powers Process Controls Div of Mark Controls Corp).

What NSN replaces 4820-00-406-8978?

There is 1 known substitute for 4820-00-406-8978: 5955-01-070-0640. Verify interchangeability with system specifications before substitution.

What are the specifications of 230-186?

Key specifications for 230-186: End Item Identification: EASTMAN KODAK CO VERSAMAT PROCESSOR MODEL 11CM CM; General Characteristics Item Description: BRASS,CONSISTS OF 91424 230-204 SCREW 1,91424 230-183 PLUNGER DISC 1,91424 230-184 STEM 1,91424 230-185 CUP 1. 2 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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