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444531 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

444531: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410, body_length: 1.610 INCHES NOMINAL IN, overall_width: 1.340 INCHES NOMINAL IN, terminal_type: TAB W/SCREW, overall_height: 0.630 INCHES NOMINAL IN, overall_length: 1.610 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-802-5778, 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
444531
NSN: 5340-00-802-5778
NIINs: 008025778, 009687784
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 410
body_length1.610 INCHES NOMINAL IN
overall_width1.340 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
overall_height0.630 INCHES NOMINAL IN
overall_length1.610 INCHES NOMINAL IN
first_leg_angle176.0 DEGREES NOMINAL
first_leg_styleCORNER RADIUS
first_leg_width1.460 INCHES NOMINAL IN
mounting_methodBASE AND THREADED HOLE(S)
second_leg_styleEND RADIUS AND TAPERED
second_leg_width1.460 INCHES NOMINAL IN
NSN5340-00-802-5778
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 444531 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
KEY FEATURES
•
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH: 0.240 INCHES NOMINAL IN
•
FSC APPLICATION DATA: ENGINE,JET ACFT
•
FIRST LEG HOLE DIAMETER: 0.344 INCHES NOMINAL IN
•
FIRST LEG ANGLE: 176.0 DEGREES NOMINAL
•
FIRST LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH: 0.960 INCHES NOMINAL IN
•
FIRST LEG CORNER RADIUS: 0.250 INCHES NOMINAL IN
•
SECOND LEG WIDTH: 1.460 INCHES NOMINAL IN
•
FIRST LEG HOLE ARRANGEMENT STYLE: TWO HOLES
TECHNICAL CHARACTERISTICS
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH0.240 INCHES NOMINAL IN
FSC APPLICATION DATAENGINE,JET ACFT
FIRST LEG HOLE DIAMETER0.344 INCHES NOMINAL IN
FIRST LEG ANGLE176.0 DEGREES NOMINAL
FIRST LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH0.960 INCHES NOMINAL IN
FIRST LEG CORNER RADIUS0.250 INCHES NOMINAL IN
SECOND LEG WIDTH1.460 INCHES NOMINAL IN
FIRST LEG HOLE ARRANGEMENT STYLETWO HOLES
STYLE DESIGNATORANGLE
FIRST LEG STYLECORNER RADIUS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 444531?
444531 is a SWITCH,THERMOSTATIC.
What is the NSN for 444531?
444531 is cataloged in the U.S. Government catalog under NSN 5340-00-802-5778. 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.