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28-5123 — SWITCH,ENGINE TEMPERATURE,AUTOMO

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

28-5123: SWITCH,ENGINE TEMPERATURE,AUTOMO.

SWITCH,ENGINE TEMPERATURE,AUTOMO. Key specifications include shaft_type: ROUND, FLATTED SINGLE ACTUATOR, flat_height: 0.219 INCHES NOMINAL SINGLE ACTUATOR IN, shaft_length: 0.875 INCHES NOMINAL SINGLE ACTUATOR IN, thread_class: 2A SINGLE MOUNTING FACILITY A, overall_width: 1.625 INCHES NOMINAL IN, pole_quantity: 2 SINGLE SECTION FRONT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-346-1412, 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→ 28-5123
NSN: 5340-00-346-1412
NIINs: 003461412, 005487101, 012098272, 012227642
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
shaft_typeROUND, FLATTED SINGLE ACTUATOR
flat_height0.219 INCHES NOMINAL SINGLE ACTUATOR IN
shaft_length0.875 INCHES NOMINAL SINGLE ACTUATOR IN
thread_class2A SINGLE MOUNTING FACILITY A
overall_width1.625 INCHES NOMINAL IN
pole_quantity2 SINGLE SECTION FRONT
terminal_typeTAB, SOLDER LUG
thread_length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
overall_height1.875 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
shaft_diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
throw_quantity6 SINGLE SECTION REAR
NSN5340-00-346-1412
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28-5123 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSTEEL,AMS 5616; 3.025 IN. W; TWO HOLES 0.315 IN. MIN AND 0.317 IN. MAX DIA IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28-5123?
28-5123 is a SWITCH,ENGINE TEMPERATURE,AUTOMO. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 28-5123?
28-5123 is cataloged in the U.S. Government catalog under NSN 5340-00-346-1412. 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.