PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84364Retainer,disk,valve

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 4820-01-642-9361 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-642-9361 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-642-9361. Primary manufacturer part number: 84364.
Features
  • Retainer,disk,valve — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP WSS ACTIVITY HX QUALITY
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-642-9361, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4820-01-642-9361
Primary Part Number84364
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP WSS ACTIVITY HX QUALITY
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-765-1681 INTERCHANGEABLE
Relay,electromagnetic
4320-01-207-25368436-4 INTERCHANGEABLE
Gear Rotor Set,rotary Pump
Eaton Corporation Div Eaton Fluid Power
6515-01-426-06344081 INTERCHANGEABLE
Pressure Infusion System
Ethox International Inc.
Cross-Reference Index
Part NumberManufacturer
84364 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
8825-BITEM5 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
5945-00-765-1681INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4320-01-207-2536INTERCHANGEABLE
GEAR ROTOR SET,ROTARY PUMP
8436-4
6515-01-426-0634INTERCHANGEABLE
PRESSURE INFUSION SYSTEM
4081

Frequently Asked Questions

What is NSN 4820-01-642-9361?

NSN 4820-01-642-9361 is a Retainer,disk,valve, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-642-9361?

NSN 4820-01-642-9361 has 2 cross-referenced part numbers: 84364 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 8825-BITEM5 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division).

What NSN replaces 4820-01-642-9361?

There are 3 known substitutes for 4820-01-642-9361: 5945-00-765-1681, 4320-01-207-2536, 6515-01-426-0634. Verify interchangeability with system specifications before substitution.

What are the specifications of 84364?

Key specifications for 84364: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP WSS ACTIVITY HX QUALITY; Criticality Code Justification: ZZZY. 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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