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659590 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

659590: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 TUBING, design_form: PREBENT, overall_length: 34.318 INCHES MINIMUM AND 34.358 INCHES MAXIMUM IN, wall_thickness: 0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, mating_end_quantity: 3 ALL ENDS, end_connection_style: MISCELLANEOUS SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-412-0289, 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
659590
NSN: 4710-00-412-0289
NIINs: 004120289, 013396364
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 TUBING
design_formPREBENT
overall_length34.318 INCHES MINIMUM AND 34.358 INCHES MAXIMUM IN
wall_thickness0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
special_featuresOVEN TEMPERATURE,DRYER HEATER CONTROL; END ITEM APPLICATION 6525-00-935-1006; PROCESSING MACHINE,RADIOGRAPHIC FILM,AUTOMATIC; CAGE 19139; P/N M6B
mating_end_quantity3 ALL ENDS
end_connection_styleMISCELLANEOUS SECOND END
tube_outside_diameter0.237 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
end_item_identificationF-111 ACFT
material_document_and_classificationAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
NSN4710-00-412-0289
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 659590 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DESIGN FORM: PREBENT
•
MATING END QUANTITY: 3 ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
•
WALL THICKNESS: 0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
END CONNECTION STYLE: MISCELLANEOUS SECOND END
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
MATING END QUANTITY3 ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
OVERALL LENGTH34.318 INCHES MINIMUM AND 34.358 INCHES MAXIMUM IN
WALL THICKNESS0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
END CONNECTION STYLEMISCELLANEOUS SECOND END
END CONNECTION STYLESWIVEL NUT, FLARE FIRST END
END CONNECTION STYLESWIVEL NUT, FLARE THIRD END
TUBE OUTSIDE DIAMETER0.237 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONF-111 ACFT
SUBSTITUTES & CROSS-REFERENCES 1
567182Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 659590?
659590 is a SWITCH,THERMOSTATIC.
What parts can replace 659590?
There is 1 known substitute for 659590: 567182. Substitute compatibility should be verified for your specific system.
What is the NSN for 659590?
659590 is cataloged in the U.S. Government catalog under NSN 4710-00-412-0289. 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.