PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AG421-014-102Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-057-3368 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-057-3368 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-057-3368. Primary manufacturer part number: AG421-014-102.
Features
  • Stem,fluid Valve — FSC 4820
  • Largest Outside Diameter: 0.142 INCHES NOMINAL IN
  • Criticality Code Justification: FEAT
  • Material: STEEL COMP 316
  • Stem Actuating End Type: THREADED EXTERNALLY
  • 8 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 Steel Comp 316 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-057-3368, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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
NSN4820-01-057-3368
Primary Part NumberAG421-014-102
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Largest Outside Diameter0.142 INCHES NOMINAL IN
Criticality Code JustificationFEAT
MaterialSTEEL COMP 316
Stem Actuating End TypeTHREADED EXTERNALLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-192-99689520 INTERCHANGEABLE
Terminal Board
Telemechanics Inc
3030-00-317-481110105 INTERCHANGEABLE
Belt,v
Liftking Manufacturing Corp
2990-00-403-1613T-9520 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
6625-00-574-79579520 INTERCHANGEABLE
Ohmmeter
Guildline Instruments Ltd
2910-00-580-637107-1610 INTERCHANGEABLE
Filter Element,fluid
Bacharach, Inc.
5950-00-786-8978SMC586455 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6210-00-951-1655MCL-A-07-01869-000 INTERCHANGEABLE
Light,indicator
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
4820-01-057-413820-CS-169-171T200PSI INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4820-01-057-417105990001124 INTERCHANGEABLE
Retainer,spindle
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5315-01-106-0336 INTERCHANGEABLE
Pin,straight,threaded
Cross-Reference Index
Part NumberManufacturer
A6421-017-118 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6421-014-102 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
AG421-014-102 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
AG421-014-102 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
9520 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
9520-11 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6421-014-102 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A6421-014-118 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5940-00-192-9968INTERCHANGEABLE
TERMINAL BOARD
9520
3030-00-317-4811INTERCHANGEABLE
BELT,V
10105
2990-00-403-1613INTERCHANGEABLE
MUFFLER,EXHAUST
T-9520
6625-00-574-7957INTERCHANGEABLE
OHMMETER
9520
2910-00-580-6371INTERCHANGEABLE
FILTER ELEMENT,FLUID
07-1610
5950-00-786-8978INTERCHANGEABLE
REACTOR
SMC586455
6210-00-951-1655INTERCHANGEABLE
LIGHT,INDICATOR
MCL-A-07-01869-000
4820-01-057-4138INTERCHANGEABLE
VALVE,SAFETY RELIEF
20-CS-169-171T200PSI
4820-01-057-4171INTERCHANGEABLE
RETAINER,SPINDLE
05990001124
5315-01-106-0336INTERCHANGEABLE
PIN,STRAIGHT,THREADED
5970-01-140-9069INTERCHANGEABLE
INSULATOR,PLATE
715828
6625-01-194-1082INTERCHANGEABLE
ACCESSORY KIT,ELECTRICAL-ELECTRO
95201101A

Frequently Asked Questions

What is NSN 4820-01-057-3368?

NSN 4820-01-057-3368 is a Stem,fluid 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 4820-01-057-3368?

NSN 4820-01-057-3368 has 8 cross-referenced part numbers: A6421-017-118 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6421-014-102 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), AG421-014-102 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), AG421-014-102 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9520 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 3 more.

What NSN replaces 4820-01-057-3368?

There are 12 known substitutes for 4820-01-057-3368: 5940-00-192-9968, 3030-00-317-4811, 2990-00-403-1613 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AG421-014-102?

Key specifications for AG421-014-102: Largest Outside Diameter: 0.142 INCHES NOMINAL IN; Special Features: WEAPON SYSTEM ESSENTIAL; Criticality Code Justification: FEAT; Material: STEEL COMP 316. 6 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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