PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20399Switch,liquid Flow

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-00-936-5943 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-936-5943 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-936-5943. Primary manufacturer part number: 20399.
Features
  • Switch,liquid Flow — FSC 5930
  • 4 verified cross-references
  • Primary manufacturer: Setra Systems, Inc. Dba Gems Sensors
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,liquid Flow, cataloged under National Stock Number 5930-00-936-5943, 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 Setra Systems, Inc. Dba Gems Sensors. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSwitch,liquid Flow
FSC / FSG5930 — No Item Name Available (FSG 59)
ManufacturersLockheed Martin Corporation Div Rms (CAGE 03538); Setra Systems, Inc. Dba Gems Sensors (CAGE 04034)
Technical Specifications
ParameterValue
NSN5930-00-936-5943
Primary Part Number20399
Item NameSwitch,liquid Flow
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6130-00-240-41724B1C2 INTERCHANGEABLE
Rectifier,metallic
Pd&e Electronics, Llc
4320-00-473-0815 INTERCHANGEABLE
Cover,pump
1630-00-785-7615 INTERCHANGEABLE
Parts Kit,dual Brak
5331-00-844-32205427-3 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5999-01-044-5781 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5305-01-612-253920399 INTERCHANGEABLE
Setscrew
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
Cross-Reference Index
Part NumberManufacturer
77C708730PT1 Lockheed Martin Corporation Div Rms (USA)
77C708730PT1REVA Lockheed Martin Corporation Div Rms (USA)
20399 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
77C708730P001 Lockheed Martin Corporation Div Rms (USA)
Related Parts
6130-00-240-4172INTERCHANGEABLE
RECTIFIER,METALLIC
4B1C2
4320-00-473-0815INTERCHANGEABLE
COVER,PUMP
1630-00-785-7615INTERCHANGEABLE
PARTS KIT,DUAL BRAK
5331-00-844-3220INTERCHANGEABLE
O-RING
5427-3
5999-01-044-5781INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5305-01-612-2539INTERCHANGEABLE
SETSCREW
20399

Frequently Asked Questions

What is NSN 5930-00-936-5943?

NSN 5930-00-936-5943 is a Switch,liquid Flow, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-936-5943?

NSN 5930-00-936-5943 has 4 cross-referenced part numbers: 77C708730PT1 (Lockheed Martin Corporation Div Rms), 77C708730PT1REVA (Lockheed Martin Corporation Div Rms), 20399 (Setra Systems, Inc. Dba Gems Sensors), 77C708730P001 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5930-00-936-5943?

There are 6 known substitutes for 5930-00-936-5943: 6130-00-240-4172, 4320-00-473-0815, 1630-00-785-7615 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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