PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121393Guide,valve Stem

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-434-6636 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-434-6636 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-434-6636. Primary manufacturer part number: 121393.
Features
  • Guide,valve Stem — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • 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 Steel Corrosion Resisting construction
General Description

The Guide,valve Stem, cataloged under National Stock Number 4820-01-434-6636, 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 1 verified specification, 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
NSN4820-01-434-6636
Primary Part Number121393
Item NameGuide,valve Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5895-00-130-5815SM-D-679393 INTERCHANGEABLE
Receiver-Transmitter,radio
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5910-00-903-9562508-0287-000 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Hbc Solutions, Inc. Dba Harris Broadcast
6150-01-338-9520121393 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Setra Systems, Inc. Dba Gems Sensors
4820-01-434-5344122598 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-5345122584 INTERCHANGEABLE
Guide,valve Stem
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-5348122599 INTERCHANGEABLE
Retainer,disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-5488123760 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-6129S75376 INTERCHANGEABLE
Base Assembly,relief Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-6632121555 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-434-666077321003 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
121393 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
DS-G-74893 ITEM 6 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
DS-G-74893 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5895-00-130-5815INTERCHANGEABLE
RECEIVER-TRANSMITTER,RADIO
SM-D-679393
5910-00-903-9562INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
508-0287-000
6150-01-338-9520INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
121393
4820-01-434-5344INTERCHANGEABLE
DISK,VALVE
122598
4820-01-434-5345INTERCHANGEABLE
GUIDE,VALVE STEM
122584
4820-01-434-5348INTERCHANGEABLE
RETAINER,DISK,VALVE
122599
4820-01-434-5488INTERCHANGEABLE
STEM,FLUID VALVE
123760
4820-01-434-6129INTERCHANGEABLE
BASE ASSEMBLY,RELIEF VALVE
S75376
4820-01-434-6632INTERCHANGEABLE
DISK,VALVE
121555
4820-01-434-6660INTERCHANGEABLE
VALVE,SAFETY RELIEF
77321003
4820-01-434-7948INTERCHANGEABLE
STEM,FLUID VALVE
123365
4820-01-434-7968INTERCHANGEABLE
RETAINER,DISK,VALVE
121556

Frequently Asked Questions

What is NSN 4820-01-434-6636?

NSN 4820-01-434-6636 is a Guide,valve Stem, 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 4820-01-434-6636?

NSN 4820-01-434-6636 has 3 cross-referenced part numbers: 121393 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), DS-G-74893 ITEM 6 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), DS-G-74893 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-434-6636?

There are 12 known substitutes for 4820-01-434-6636: 5895-00-130-5815, 5910-00-903-9562, 6150-01-338-9520 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121393?

Key specifications for 121393: Material: STEEL CORROSION RESISTING; End Item Identification: SUPPLY CLASS AOE; Special Features: FOR SAFETY RELIEF VALVE SZ 0.500 IN. BY 1.000 IN. IN. 3 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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