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PartsTable / COMPONENT / CLASS 55-2
CLASS 55-2 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The INSULATOR,PIN is a the manufacturer industrial component. Key specifications include material: PORCELAIN OVERALL, overall_height: 4.000 INCHES NOMINAL IN, pin_hole_depth: 1.500 INCHES NOMINAL IN, outside_diameter: 3.625 INCHES NOMINAL IN, pinhole_diameter: 1.000 INCHES NOMINAL IN, style_designator: PETTICOAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-263-6885, 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
CLASS 55-2
NSN: 5970-00-263-6885
FSC: 5970
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialPORCELAIN OVERALL
overall_height4.000 INCHES NOMINAL IN
pin_hole_depth1.500 INCHES NOMINAL IN
outside_diameter3.625 INCHES NOMINAL IN
pinhole_diameter1.000 INCHES NOMINAL IN
style_designatorPETTICOAT
radial_groove_radius0.750 INCHES NOMINAL IN
top_wire_groove_radius0.750 INCHES NOMINAL IN
nondefinitive_spec/std_data2 CLASS AND 4 SIZE AND II TYPE
NSN5970-00-263-6885
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATOR,PIN TITLE COMPONENT PN CLASS 55-2 MFR INSULATOR,PIN
KEY FEATURES
•
PINHOLE DIAMETER: 1.000 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 2 CLASS AND 4 SIZE AND II TYPE
•
STYLE DESIGNATOR: PETTICOAT
•
MATERIAL: PORCELAIN OVERALL
•
RADIAL GROOVE RADIUS: 0.750 INCHES NOMINAL IN
•
PIN HOLE DEPTH: 1.500 INCHES NOMINAL IN
•
TOP WIRE GROOVE RADIUS: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PINHOLE DIAMETER1.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA2 CLASS AND 4 SIZE AND II TYPE
STYLE DESIGNATORPETTICOAT
MATERIALPORCELAIN OVERALL
OVERALL HEIGHT4.000 INCHES NOMINAL IN
RADIAL GROOVE RADIUS0.750 INCHES NOMINAL IN
PIN HOLE DEPTH1.500 INCHES NOMINAL IN
TOP WIRE GROOVE RADIUS0.750 INCHES NOMINAL IN
OUTSIDE DIAMETER3.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
38246Z10Interchangeable
interchangeable cross-reference
interchangeable
NP2T2Interchangeable
interchangeable cross-reference
interchangeable
HH-I-435Interchangeable
interchangeable cross-reference
interchangeable
C29-3CLASS53-2Interchangeable
interchangeable cross-reference
interchangeable
36361Interchangeable
interchangeable cross-reference
interchangeable
31502Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CLASS 55-2?
CLASS 55-2 is a INSULATOR,PIN.
What parts can replace CLASS 55-2?
There are 11 known substitutes for CLASS 55-2: 38246Z10, NP2T2, HH-I-435 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CLASS 55-2?
CLASS 55-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-263-6885. 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