PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

36121Switch,flow

Thomas Products Llc · NSN 5930-01-220-1809 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-220-1809 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-220-1809. Primary manufacturer part number: 36121.
Features
  • Switch,flow — FSC 5930
  • Contact Action Stimulus: DECREASE
  • Features Provided: AUTOMATIC RESET
  • Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE
  • Nominal Thread Size: 3.000 INCHES ALL THREADED HOLE IN
  • Style Designator: CYLINDRICAL
  • Terminal Type: WIRE LEAD
  • Media for Which Designed: LIQUID
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,flow, cataloged under National Stock Number 5930-01-220-1809, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Thomas Products Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-220-1809
Primary Part Number36121
Item NameSwitch,flow
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerThomas Products Llc
StatusACTIVE
Contact Action StimulusDECREASE
Features ProvidedAUTOMATIC RESET
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Nominal Thread Size3.000 INCHES ALL THREADED HOLE IN
Style DesignatorCYLINDRICAL
Terminal TypeWIRE LEAD
Media for Which DesignedLIQUID
Contact Stimulus Rating75.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Mounting MethodTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5325-00-523-623836-121 INTERCHANGEABLE
Eyelet,metallic
Keysight Technologies Inc
4330-01-165-0852 INTERCHANGEABLE
Filter Body,fluid
5360-01-235-789736121 INTERCHANGEABLE
Spring
Pneudraulics, Inc.
2590-01-373-277936121 INTERCHANGEABLE
Wear Pad,boom
Allied Systems Company Dba Allied Systems Co
4130-01-389-854536121 INTERCHANGEABLE
Condenser Coil,refrigeration
Wilshire Corp
Cross-Reference Index
Part NumberManufacturer
36121-03338 Thomas Products Llc (USA)
336121-03338 Skf Canada Ltd (CAN)
36121 PRIMARY Thomas Products Llc (USA)
Related Parts
5325-00-523-6238INTERCHANGEABLE
EYELET,METALLIC
36-121
4330-01-165-0852INTERCHANGEABLE
FILTER BODY,FLUID
5360-01-235-7897INTERCHANGEABLE
SPRING
36121
2590-01-373-2779INTERCHANGEABLE
WEAR PAD,BOOM
36121
4130-01-389-8545INTERCHANGEABLE
CONDENSER COIL,REFRIGERATION
36121

Frequently Asked Questions

What is NSN 5930-01-220-1809?

NSN 5930-01-220-1809 is a Switch,flow, manufactured by Thomas Products Llc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-220-1809?

NSN 5930-01-220-1809 has 3 cross-referenced part numbers: 36121-03338 (Thomas Products Llc), 336121-03338 (Skf Canada Ltd), 36121 (Thomas Products Llc).

What NSN replaces 5930-01-220-1809?

There are 5 known substitutes for 5930-01-220-1809: 5325-00-523-6238, 4330-01-165-0852, 5360-01-235-7897 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 36121?

Key specifications for 36121: Contact Action Stimulus: DECREASE; Features Provided: AUTOMATIC RESET; Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE; Nominal Thread Size: 3.000 INCHES ALL THREADED HOLE IN. 11 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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