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PartsTable / COMPONENT / 159966
159966 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: PLATE, body_width: 0.300 INCHES MAXIMUM IN, nut_height: 0.305 INCHES NOMINAL IN, nut_length: 1.779 INCHES NOMINAL IN, body_height: 0.165 INCHES MAXIMUM 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 5310-00-564-8093, 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
159966
NSN: 5310-00-564-8093
FSC: 5310
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_stylePLATE
body_width0.300 INCHES MAXIMUM IN
nut_height0.305 INCHES NOMINAL IN
nut_length1.779 INCHES NOMINAL IN
body_height0.165 INCHES MAXIMUM IN
body_length0.795 INCHES MAXIMUM IN
plate_width0.506 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.070 INCHES NOMINAL IN
NSN5310-00-564-8093
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 159966 · 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
•
MOUNTING HOLE DIAMETER: 0.276 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MOUNTING HOLE ARRANGEMENT STYLE: 1 HOLE
•
NUT MOUNTING PROVISION: STRAIGHT HOLES
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE DIAMETER0.276 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MOUNTING HOLE ARRANGEMENT STYLE1 HOLE
NUT MOUNTING PROVISIONSTRAIGHT HOLES
DISTANCE FROM MOUNTING HOLE CENTER TO BASE0.250 INCHES NOMINAL IN
NUT LENGTH1.779 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MLM124LInterchangeable
interchangeable cross-reference
interchangeable
080C81600Interchangeable
interchangeable cross-reference
interchangeable
324Interchangeable
interchangeable cross-reference
interchangeable
BCL4046BDInterchangeable
interchangeable cross-reference
interchangeable
129306Interchangeable
interchangeable cross-reference
interchangeable
CD4046AEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 159966?
159966 is a MICROCIRCUIT,DIGITAL.
What parts can replace 159966?
There are 8 known substitutes for 159966: MLM124L, 080C81600, 324 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 159966?
159966 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-564-8093. 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