PartsTable
Technical Data Sheet
PartsTable / MRO / 12766
12766 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: STEEL CORROSION RESISTING BLADE, body_style: PISTON, head_style: FILLISTER, body_length: 0.281 INCHES NOMINAL IN, head_height: 0.156 INCHES NOMINAL IN, blade_length: 21.000 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-165-7215, 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→ 12766
NSN: 5305-00-165-7215
FSC: 5305
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BLADE
quantity6
body_stylePISTON
head_styleFILLISTER
body_length0.281 INCHES NOMINAL IN
head_height0.156 INCHES NOMINAL IN
blade_length21.000 MILLIMETERS NOMINAL MM
thread_class3A A
head_diameter0.375 INCHES NOMINAL IN
hole_diameter0.040 INCHES NOMINAL IN
hole_quantity2
thread_length0.406 INCHES MINIMUM IN
NSN5305-00-165-7215
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12766 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD LENGTH: 0.406 INCHES MINIMUM IN
•
HOLE DIAMETER: 0.040 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 20
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: FILLISTER
•
HOLE QUANTITY: 2
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.406 INCHES MINIMUM IN
HOLE DIAMETER0.040 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEFILLISTER
HOLE QUANTITY2
NOMINAL THREAD DIAMETER0.250 INCHES IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD CLASS3A A
FASTENER LENGTH0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MAV01D03Interchangeable
interchangeable cross-reference
interchangeable
12766Interchangeable
interchangeable cross-reference
interchangeable
561719Interchangeable
interchangeable cross-reference
interchangeable
671201Interchangeable
interchangeable cross-reference
interchangeable
77610Interchangeable
interchangeable cross-reference
interchangeable
KK2205219Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12766?
12766 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace 12766?
There are 7 known substitutes for 12766: MAV01D03, 12766, 561719 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12766?
12766 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-165-7215. 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