PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

80000-01 ITEM 5 1 1/2INSeat,valve

Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · NSN 4820-01-226-3739 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-226-3739 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-226-3739. Primary manufacturer part number: 80000-01 ITEM 5 1 1/2IN.
Features
  • Seat,valve — FSC 4820
  • Material: COBALT ALLOY OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Cobalt Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-226-3739, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-226-3739
Primary Part Number80000-01 ITEM 5 1 1/2IN
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
StatusACTIVE
MaterialCOBALT ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5355-00-667-9589800000-1 INTERCHANGEABLE
Knob
Mission Systems Davenport Inc.
5365-01-060-96914623-E INTERCHANGEABLE
Bushing,yoke Valve
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-200-94312611-E INTERCHANGEABLE
Stem,fluid Valve
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-210-13065170F INTERCHANGEABLE
Seat,valve
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5962-01-254-8867 INTERCHANGEABLE
Integrated Circuit
3120-01-354-1392800-0001 INTERCHANGEABLE
Bearing,sleeve
Hope Imaging Corporation
6620-01-494-0345800-0001 INTERCHANGEABLE
Transmitter,pressure
Bell Textron Inc
2090-01-718-7847800-0-001 INTERCHANGEABLE
Launch and Recovery Subsystem,un
Maritime Applied Physics Corporation Dba Blacksea Technologies
Cross-Reference Index
Part NumberManufacturer
80000-01 ITEM 5 1 1/2IN PRIMARY Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
80000-01 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
Related Parts
5355-00-667-9589INTERCHANGEABLE
KNOB
800000-1
5365-01-060-9691INTERCHANGEABLE
BUSHING,YOKE VALVE
4623-E
4820-01-200-9431INTERCHANGEABLE
STEM,FLUID VALVE
2611-E
4820-01-210-1306INTERCHANGEABLE
SEAT,VALVE
5170F
5962-01-254-8867INTERCHANGEABLE
INTEGRATED CIRCUIT
3120-01-354-1392INTERCHANGEABLE
BEARING,SLEEVE
800-0001
6620-01-494-0345INTERCHANGEABLE
TRANSMITTER,PRESSURE
800-0001
2090-01-718-7847INTERCHANGEABLE
LAUNCH AND RECOVERY SUBSYSTEM,UN
800-0-001

Frequently Asked Questions

What is NSN 4820-01-226-3739?

NSN 4820-01-226-3739 is a Seat,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-226-3739?

NSN 4820-01-226-3739 has 2 cross-referenced part numbers: 80000-01 ITEM 5 1 1/2IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 80000-01 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).

What NSN replaces 4820-01-226-3739?

There are 8 known substitutes for 4820-01-226-3739: 5355-00-667-9589, 5365-01-060-9691, 4820-01-200-9431 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 80000-01 ITEM 5 1 1/2IN?

Key specifications for 80000-01 ITEM 5 1 1/2IN: Material: COBALT ALLOY OVERALL. 1 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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