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321931 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

321931: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 3.948 INCHES MAXIMUM IN, bulb_length: 2.000 INCHES NOMINAL IN, thread_class: 2B ALL THREADED HOLE, bulb_diameter: 0.500 INCHES NOMINAL IN, overall_width: 3.265 INCHES MAXIMUM IN, terminal_type: TAB W/SCREW. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-028-4175, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 321931
NSN: 5930-00-028-4175
FSC: 5930 — Switches
CAGE: 49742 — RANCO MANAGEMENT CORP (USA)
SPECIFICATIONS
body_height3.948 INCHES MAXIMUM IN
bulb_length2.000 INCHES NOMINAL IN
thread_class2B ALL THREADED HOLE
bulb_diameter0.500 INCHES NOMINAL IN
overall_width3.265 INCHES MAXIMUM IN
terminal_typeTAB W/SCREW
overall_height4.038 INCHES MAXIMUM IN
overall_length1.484 INCHES MAXIMUM IN
mounting_methodBRACKET(S) AND THREADED HOLE(S)
style_designatorRECTANGULAR
features_providedAUTOMATIC RESET
frequency_in_hertz60.0 SINGLE VOLTAGE
NSN5930-00-028-4175
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 321931 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
FREQUENCY IN HERTZ: 60.0 SINGLE VOLTAGE
•
CONTACT ACTION STIMULUS: INCREASE
•
TERMINAL TYPE: TAB W/SCREW
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE
•
BULB LENGTH: 2.000 INCHES NOMINAL IN
•
BULB DIAMETER: 0.500 INCHES NOMINAL IN
•
MOUNTING METHOD: BRACKET(S) AND THREADED HOLE(S)
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.038 INCHES MAXIMUM IN
FREQUENCY IN HERTZ60.0 SINGLE VOLTAGE
CONTACT ACTION STIMULUSINCREASE
TERMINAL TYPETAB W/SCREW
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
BULB LENGTH2.000 INCHES NOMINAL IN
BULB DIAMETER0.500 INCHES NOMINAL IN
MOUNTING METHODBRACKET(S) AND THREADED HOLE(S)
BODY HEIGHT3.948 INCHES MAXIMUM IN
STYLE DESIGNATORRECTANGULAR
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
SUBSTITUTES & CROSS-REFERENCES 1
E13-2605Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 321931?
321931 is a SWITCH,THERMOSTATIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 321931?
There is 1 known substitute for 321931: E13-2605. Substitute compatibility should be verified for your specific system.
What is the NSN for 321931?
321931 is cataloged in the U.S. Government catalog under NSN 5930-00-028-4175. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.