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3R559 ✓ 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 MIRROR,INSPECTION is a the manufacturer industrial component. Key specifications include unit_type: FIXED LENGTH, mirror_shape: ROUND, overall_length: 7.500 INCHES NOMINAL IN, mirror_diameter: 0.875 INCHES NOMINAL IN, features_provided: COMFORT GRIP HANDLE AND 360 DEGREE SWIVEL HEAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9297, 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
3R559
NSN: 5120-01-399-9297
FSC: 5120
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
unit_typeFIXED LENGTH
mirror_shapeROUND
overall_length7.500 INCHES NOMINAL IN
mirror_diameter0.875 INCHES NOMINAL IN
features_providedCOMFORT GRIP HANDLE AND 360 DEGREE SWIVEL HEAD
NSN5120-01-399-9297
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MIRROR,INSPECTION TITLE COMPONENT PN 3R559 MFR MIRROR,INSPECTION
KEY FEATURES
•
MIRROR SHAPE: ROUND
•
MIRROR DIAMETER: 0.875 INCHES NOMINAL IN
•
UNIT TYPE: FIXED LENGTH
•
FEATURES PROVIDED: COMFORT GRIP HANDLE AND 360 DEGREE SWIVEL HEAD
TECHNICAL CHARACTERISTICS (FLIS)
MIRROR SHAPEROUND
MIRROR DIAMETER0.875 INCHES NOMINAL IN
UNIT TYPEFIXED LENGTH
FEATURES PROVIDEDCOMFORT GRIP HANDLE AND 360 DEGREE SWIVEL HEAD
OVERALL LENGTH7.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2370Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-18/7Interchangeable
interchangeable cross-reference
interchangeable
BA027Interchangeable
interchangeable cross-reference
interchangeable
8152B0440-3AInterchangeable
interchangeable cross-reference
interchangeable
SS3Interchangeable
interchangeable cross-reference
interchangeable
62D29Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3R559?
3R559 is a MIRROR,INSPECTION.
What parts can replace 3R559?
There are 20 known substitutes for 3R559: 2370, MIL-B-18/7, BA027 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3R559?
3R559 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9297. 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