PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS3205 4INValve,check

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-127-5600 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-127-5600 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-127-5600. Primary manufacturer part number: NS3205 4IN.
Features
  • Valve,check — FSC 4820
  • 9 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-127-5600, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. This item has 9 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: Cancelled.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersNational Oilwell (CAGE 11836); Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187)
Technical Specifications
ParameterValue
NSN4820-01-127-5600
Primary Part NumberNS3205 4IN
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-554-6848 INTERCHANGEABLE
Bearing,roller,needle
5180-00-701-8046 INTERCHANGEABLE
Puller Kit,universal
4820-01-067-391590117-000 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-121-0796NS3205 PIECE 2 2 1/2IN INTERCHANGEABLE
Cap,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-126-373790041-000 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-141-8559 INTERCHANGEABLE
Valve,check
4820-01-282-412190032 INTERCHANGEABLE
Valve,vacuum Breaking
Niantic Tool, Inc. Dba Niantic Tool Co
4920-01-299-029590032 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5840-01-479-01979003-2 INTERCHANGEABLE
Radar Set Subassembly
Smiths Interconnect Inc Div Smiths Interconnect Inc - Tampa
5920-01-488-938490032-021A INTERCHANGEABLE
Fuse,cartridge
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (drawings)
Cross-Reference Index
Part NumberManufacturer
NS3205-4B REVD 4IN National Oilwell (USA)
NS3205 4IN PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS3205 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS3205 4IN ASSY National Oilwell (USA)
NS3205 4IN National Oilwell (USA)
NS3205 National Oilwell (USA)
90032 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS3205-4B REVD4 National Oilwell (USA)
NS3205-4B REVD 4IN PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
3110-00-554-6848INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5180-00-701-8046INTERCHANGEABLE
PULLER KIT,UNIVERSAL
4820-01-067-3915INTERCHANGEABLE
VALVE,CHECK
90117-000
4820-01-121-0796INTERCHANGEABLE
CAP,VALVE
NS3205 PIECE 2 2 1/2IN
4820-01-126-3737INTERCHANGEABLE
VALVE,CHECK
90041-000
4820-01-141-8559INTERCHANGEABLE
VALVE,CHECK
4820-01-282-4121INTERCHANGEABLE
VALVE,VACUUM BREAKING
90032
4920-01-299-0295INTERCHANGEABLE
TEST PROGRAM SET
90032
5840-01-479-0197INTERCHANGEABLE
RADAR SET SUBASSEMBLY
9003-2
5920-01-488-9384INTERCHANGEABLE
FUSE,CARTRIDGE
90032-021A
5920-01-488-9390INTERCHANGEABLE
FUSE,CARTRIDGE
90032-019A
6515-01-496-2000INTERCHANGEABLE
INFUSION SET,HIGH FLOW,BLOOD-FLU

Frequently Asked Questions

What is NSN 4820-01-127-5600?

NSN 4820-01-127-5600 is a Valve,check, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-127-5600?

NSN 4820-01-127-5600 has 9 cross-referenced part numbers: NS3205-4B REVD 4IN (National Oilwell), NS3205 4IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS3205 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS3205 4IN ASSY (National Oilwell), NS3205 4IN (National Oilwell) and 4 more.

What NSN replaces 4820-01-127-5600?

There are 12 known substitutes for 4820-01-127-5600: 3110-00-554-6848, 5180-00-701-8046, 4820-01-067-3915 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-127-5600 still in active supply?

NSN 4820-01-127-5600 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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