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Technical Data Sheet
PartsTable / COMPONENT / B3870-1
B3870-1 ✓ 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 CANOPY ASSY,INNER,L is a the manufacturer industrial component. Key specifications include width: 4.000 INCHES NOMINAL IN, material: ASBESTOS FRICTION LINING, thickness: 0.500 INCHES NOMINAL IN, arc_length: 104.094 INCHES NOMINAL IN, lining_style: SEGMENT PLAIN, minor_radius: 21.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6220-00-507-9830, 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
B3870-1
NSN: 6220-00-507-9830
FSC: 6220
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
width4.000 INCHES NOMINAL IN
materialASBESTOS FRICTION LINING
thickness0.500 INCHES NOMINAL IN
arc_length104.094 INCHES NOMINAL IN
lining_styleSEGMENT PLAIN
minor_radius21.000 INCHES NOMINAL IN
application_typeDRY
attachment_methodRIVETED
features_providedRIGID FRICTION LINING
fabrication_methodMOLDED
strengthening_featureINTERNALLY MOLDED-IN REINFORCEMENT
hole_arrangement_styleDOUBLE EVEN
NSN6220-00-507-9830
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CANOPY ASSY,INNER,L TITLE COMPONENT PN B3870-1 MFR CANOPY ASSY,INNER,L
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
55918PC117Interchangeable
interchangeable cross-reference
interchangeable
54954PC117Interchangeable
interchangeable cross-reference
interchangeable
B-3870Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3870-1?
B3870-1 is a CANOPY ASSY,INNER,L.
What parts can replace B3870-1?
There are 3 known substitutes for B3870-1: 55918PC117, 54954PC117, B-3870. Substitute compatibility should be verified for your specific system.
Is B3870-1 still available?
B3870-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026