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PC429 — Technical Data Sheet

✓ 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,MICA DIELECTR. Key specifications include material: STEEL COMP 4140, thread_class: 2A NUT THREAD A, thread_length: 0.625 INCHES MINIMUM NUT THREAD IN, overall_length: 2.250 INCHES NOMINAL IN, special_features: 175 VDC VDC, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the Federal Logistics Information System under NSN 5307-00-737-5503, 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→ PC429
NSN: 5307-00-737-5503
FSC: 5307
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class2A NUT THREAD A
thread_length0.625 INCHES MINIMUM NUT THREAD IN
overall_length2.250 INCHES NOMINAL IN
special_features175 VDC VDC
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.375 INCHES NUT THREAD IN
thread_quantity_per_inch16 STUD THREAD
thread_series_designatorUNF NUT THREAD
capacitance_range_in_picofarads+90.0 TO 400.0 SINGLE SECTION
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-737-5503
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PC429 · 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
•
NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN
•
THREAD SERIES DESIGNATOR: UNF NUT THREAD
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD QUANTITY PER INCH: 24 NUT THREAD
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
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
THREAD SERIES DESIGNATORUNF NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
OVERALL LENGTH2.250 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24 NUT THREAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
THREAD QUANTITY PER INCH16 STUD THREAD
THREAD CLASS2A NUT THREAD A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
P615InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
251-407InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FP1539InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PC429?
PC429 is a CAPACITOR,VARIABLE,MICA DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace PC429?
There are 3 known substitutes for PC429: P615, 251-407, FP1539. Substitute compatibility should be verified for your specific system.
Is PC429 still available?
PC429 is currently cancelled.
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Last verified: September 2026