PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121394Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-434-5489 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-434-5489 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-434-5489. Primary manufacturer part number: 121394.
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Type for Which Designed: RELIEF
  • Valve Size for Which Designed: 0.500 INCHES AND 1.000 INCHES IN
  • Valve Model Number for Which Designed: 9512101D
  • Material: STEEL COMP 316
  • Stem Actuating End Type: THREADED EXTERNALLY
  • 2 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 4820-01-434-5489, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-434-5489
Primary Part Number121394
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Valve Type for Which DesignedRELIEF
Valve Size for Which Designed0.500 INCHES AND 1.000 INCHES IN
Valve Model Number for Which Designed9512101D
MaterialSTEEL COMP 316
Stem Actuating End TypeTHREADED EXTERNALLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-103-0315165-274 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Graco Inc.
Cross-Reference Index
Part NumberManufacturer
DS-G-78493 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
121394 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4730-00-103-0315INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
165-274

Frequently Asked Questions

What is NSN 4820-01-434-5489?

NSN 4820-01-434-5489 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 4820-01-434-5489?

NSN 4820-01-434-5489 has 2 cross-referenced part numbers: DS-G-78493 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 121394 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-434-5489?

There is 1 known substitute for 4820-01-434-5489: 4730-00-103-0315. Verify interchangeability with system specifications before substitution.

What are the specifications of 121394?

Key specifications for 121394: Valve Type for Which Designed: RELIEF; End Item Identification: SUPPLY CLASS AOE; Valve Size for Which Designed: 0.500 INCHES AND 1.000 INCHES IN; Valve Model Number for Which Designed: 9512101D. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com