PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILW19016Disk,valve

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-729-6890 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-729-6890 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-729-6890. Primary manufacturer part number: MILW19016.
Features
  • Disk,valve — FSC 4820
  • Style Designator: PLAIN
  • Nondefinitive Spec/std Data: 1 TYPE AND HARD COMPOSITION AND 00 SIZE AND B STYLE
  • Media for Which Designed: WATER, HOT
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Outside Diameter: 0.500 INCHES NOMINAL IN
  • Inside Diameter: 0.171 INCHES NOMINAL IN
  • Shoulder Height: 0.1093 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-729-6890, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-729-6890
Primary Part NumberMILW19016
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Style DesignatorPLAIN
Nondefinitive Spec/std Data1 TYPE AND HARD COMPOSITION AND 00 SIZE AND B STYLE
Media for Which DesignedWATER, HOT
MaterialRUBBER CHLOROPRENE CLASS CR
Outside Diameter0.500 INCHES NOMINAL IN
Inside Diameter0.171 INCHES NOMINAL IN
Shoulder Height0.1093 INCHES NOMINAL IN
Temp Rating32.0 FAHRENHEIT MINIMUM AND 212.0 FAHRENHEIT MAXIMUM DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-282-6088W-150 INTERCHANGEABLE
Disk,valve
Radiator Specialty Company
4820-00-282-6089 INTERCHANGEABLE
Disk,valve
4820-00-282-6090 INTERCHANGEABLE
Disk,valve
4820-00-282-6102 INTERCHANGEABLE
Disk,valve
4820-00-282-6103444J75 INTERCHANGEABLE
Disk,valve
W.w. Grainger, Inc. Div Government Sales Division
4820-00-282-6104 INTERCHANGEABLE
Disk,valve
4820-00-282-6105 INTERCHANGEABLE
Disk,valve
4820-00-292-2836 INTERCHANGEABLE
Disk,valve
4820-00-595-1175 INTERCHANGEABLE
Disk,valve
4820-00-595-2332SLBB14 INTERCHANGEABLE
Disk,valve
Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc
Cross-Reference Index
Part NumberManufacturer
MILW19016 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
WSERIESSZ00 Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc (USA)
Related Parts
4820-00-282-6088INTERCHANGEABLE
DISK,VALVE
W-150
4820-00-282-6089INTERCHANGEABLE
DISK,VALVE
4820-00-282-6090INTERCHANGEABLE
DISK,VALVE
4820-00-282-6102INTERCHANGEABLE
DISK,VALVE
4820-00-282-6103INTERCHANGEABLE
DISK,VALVE
444J75
4820-00-282-6104INTERCHANGEABLE
DISK,VALVE
4820-00-282-6105INTERCHANGEABLE
DISK,VALVE
4820-00-292-2836INTERCHANGEABLE
DISK,VALVE
4820-00-595-1175INTERCHANGEABLE
DISK,VALVE
4820-00-595-2332INTERCHANGEABLE
DISK,VALVE
SLBB14
4820-00-599-8769INTERCHANGEABLE
DISK,VALVE
2801K31
4820-00-729-6891INTERCHANGEABLE
DISK,VALVE

Frequently Asked Questions

What is NSN 4820-00-729-6890?

NSN 4820-00-729-6890 is a Disk,valve, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-729-6890?

NSN 4820-00-729-6890 has 2 cross-referenced part numbers: MILW19016 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), WSERIESSZ00 (Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc).

What NSN replaces 4820-00-729-6890?

There are 12 known substitutes for 4820-00-729-6890: 4820-00-282-6088, 4820-00-282-6089, 4820-00-282-6090 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILW19016?

Key specifications for MILW19016: Style Designator: PLAIN; Nondefinitive Spec/std Data: 1 TYPE AND HARD COMPOSITION AND 00 SIZE AND B STYLE; Overall Height: 0.2187 INCHES NOMINAL IN; Media for Which Designed: WATER, HOT. 9 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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