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PartsTable / COMPONENT / 501560
501560 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN, bulb_length: 9.500 INCHES NOMINAL IN, thread_class: 2B, bulb_diameter: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-4545, 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
501560
NSN: 5310-00-011-4545
FSC: 5310
CAGE: 23705 — FRUEHAUF CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
bulb_length9.500 INCHES NOMINAL IN
thread_class2B
bulb_diameter0.375 INCHES NOMINAL IN
overall_width3.750 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
thread_seriesUNF
overall_height1.875 INCHES NOMINAL IN
overall_length5.250 INCHES NOMINAL IN
mounting_methodBASE
NSN5310-00-011-4545
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 501560 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.4280 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 28
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: COPPER ALLOY OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-611-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.4280 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD SERIESUNF
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD QUANTITY PER INCH28
THREAD DIRECTIONRIGHT-HAND
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-611-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NUT HEIGHT0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MS3198-7PInterchangeable
interchangeable cross-reference
interchangeable
M22520/2-07Interchangeable
interchangeable cross-reference
interchangeable
5120PL1678763Interchangeable
interchangeable cross-reference
interchangeable
22107Interchangeable
interchangeable cross-reference
interchangeable
8424771-1Interchangeable
interchangeable cross-reference
interchangeable
TC-4111Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501560?
501560 is a SWITCH,THERMOSTATIC.
What parts can replace 501560?
There are 16 known substitutes for 501560: MS3198-7P, M22520/2-07, 5120PL1678763 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501560?
501560 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-4545. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026