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Technical Data Sheet
20551-1A ✓ 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

MOUNTING BASE,ELECTRICAL EQUIPME. Key specifications include material: ALUMINUM ALLOY 6061, overall_depth: 14.344 INCHES MINIMUM AND 14.406 INCHES MAXIMUM IN, overall_width: 5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM IN, style_designator: TRAY TYPE, mounting_provision: UNTHREADED HOLE, fsc_application_data: ROLLER MAP SYSTEM,NAVIGATIONALAIRCRAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-070-1808, 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
20551-1A
NSN: 5975-00-070-1808
FSC: 5975
CAGE: 81860 — HUTCHINSON AEROSPACE & INDUSTRY, INC. DBA BARRY WRIGHT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
overall_depth14.344 INCHES MINIMUM AND 14.406 INCHES MAXIMUM IN
overall_width5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM IN
style_designatorTRAY TYPE
mounting_provisionUNTHREADED HOLE
fsc_application_dataROLLER MAP SYSTEM,NAVIGATIONALAIRCRAFT
vibration_mount_typeCUP
center_to_center_distance_between_mounting_holes_along_depth8.250 INCHES NOMINAL IN
center_to_center_distance_between_mounting_holes_along_width3.688 INCHES NOMINAL IN
NSN5975-00-070-1808
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MOUNTING BASE,ELECTRICAL EQUIPME TITLE COMPONENT PN 20551-1A MFR MOUNTING BASE,ELECTRIC
KEY FEATURES
STYLE DESIGNATOR: TRAY TYPE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 3.688 INCHES NOMINAL IN
FSC APPLICATION DATA: ROLLER MAP SYSTEM,NAVIGATIONALAIRCRAFT
VIBRATION MOUNT TYPE: CUP
MATERIAL: ALUMINUM ALLOY 6061
MOUNTING PROVISION: UNTHREADED HOLE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DEPTH14.344 INCHES MINIMUM AND 14.406 INCHES MAXIMUM IN
STYLE DESIGNATORTRAY TYPE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH3.688 INCHES NOMINAL IN
OVERALL WIDTH5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM IN
FSC APPLICATION DATAROLLER MAP SYSTEM,NAVIGATIONALAIRCRAFT
VIBRATION MOUNT TYPECUP
MATERIALALUMINUM ALLOY 6061
MOUNTING PROVISIONUNTHREADED HOLE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG DEPTH8.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
205511Interchangeable
interchangeable cross-reference
interchangeable
7080-5Interchangeable
interchangeable cross-reference
interchangeable
20551Interchangeable
interchangeable cross-reference
interchangeable
40167Interchangeable
interchangeable cross-reference
interchangeable
40169Interchangeable
interchangeable cross-reference
interchangeable
6433169Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20551-1A?
20551-1A is a MOUNTING BASE,ELECTRICAL EQUIPME.
What parts can replace 20551-1A?
There are 6 known substitutes for 20551-1A: 205511, 7080-5, 20551 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20551-1A?
20551-1A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-070-1808. This indicates validated use in U.S. government and defense supply chains.
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