PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

82001Retainer,disk,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-221-8902 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-221-8902 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-221-8902. Primary manufacturer part number: 82001.
Features
  • Retainer,disk,valve — FSC 4820
  • Valve Design Control Activity: 15187
  • Material: NICKEL ALLOY
  • Material Document and Classification: QQ-N-288, COMP D FED SPEC SINGLE MATERIAL RESPONSE
  • Valve Model Number for Which Designed: 2 1/2 H 3 1/2 HNB-H
  • Valve Size for Which Designed: 3.500 INCHES IN
  • 3 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
  • Applications requiring Nickel Alloy construction
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-221-8902, 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. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-01-221-8902
Primary Part Number82001
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Valve Design Control Activity15187
MaterialNICKEL ALLOY
Material Document and ClassificationQQ-N-288, COMP D FED SPEC SINGLE MATERIAL RESPONSE
Valve Model Number for Which Designed2 1/2 H 3 1/2 HNB-H
Valve Size for Which Designed3.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4920-00-050-982082001 INTERCHANGEABLE
Retainer,reservoir
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
3110-00-155-8432 INTERCHANGEABLE
Bearing,ball,annular
5315-00-365-2552 INTERCHANGEABLE
Pin,straight,headless
5120-00-473-775241W3249-825 INTERCHANGEABLE
Wrench,spanner
Marine Corps
5345-00-678-189582-001 INTERCHANGEABLE
Stone,commutator Surfacing
Ideal Industries, Inc.
6625-00-891-9234467-0164 INTERCHANGEABLE
Shunt,instrument
Continental Electronics Corp
5935-01-017-3290 INTERCHANGEABLE
Connector,receptacle,electrical
4820-01-019-2821A-49148 PIECE 37 INTERCHANGEABLE
Cylinder Assembly,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5310-01-026-060012032 INTERCHANGEABLE
Nut,plain,hexagon
Maradyne Corporation
6515-01-140-51828200-1 INTERCHANGEABLE
Handpiece,ultrasonic Fragmentati
Coopersurgical Inc Dba Coopersurgical Products
Cross-Reference Index
Part NumberManufacturer
A-49120 PIECE 8 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A-49120 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
82001 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4920-00-050-9820INTERCHANGEABLE
RETAINER,RESERVOIR
82001
3110-00-155-8432INTERCHANGEABLE
BEARING,BALL,ANNULAR
5315-00-365-2552INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5120-00-473-7752INTERCHANGEABLE
WRENCH,SPANNER
41W3249-825
5345-00-678-1895INTERCHANGEABLE
STONE,COMMUTATOR SURFACING
82-001
6625-00-891-9234INTERCHANGEABLE
SHUNT,INSTRUMENT
467-0164
5935-01-017-3290INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4820-01-019-2821INTERCHANGEABLE
CYLINDER ASSEMBLY,VALVE
A-49148 PIECE 37
5310-01-026-0600INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12032
6515-01-140-5182INTERCHANGEABLE
HANDPIECE,ULTRASONIC FRAGMENTATI
8200-1
4820-01-207-9905INTERCHANGEABLE
PISTON,VALVE
043607
5220-01-223-1206INTERCHANGEABLE
PLATE,SURFACE
82001

Frequently Asked Questions

What is NSN 4820-01-221-8902?

NSN 4820-01-221-8902 is a Retainer,disk,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-221-8902?

NSN 4820-01-221-8902 has 3 cross-referenced part numbers: A-49120 PIECE 8 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A-49120 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 82001 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-221-8902?

There are 12 known substitutes for 4820-01-221-8902: 4920-00-050-9820, 3110-00-155-8432, 5315-00-365-2552 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 82001?

Key specifications for 82001: Valve Design Control Activity: 15187; Material: NICKEL ALLOY; Material Document and Classification: QQ-N-288, COMP D FED SPEC SINGLE MATERIAL RESPONSE; Valve Model Number for Which Designed: 2 1/2 H 3 1/2 HNB-H. 5 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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