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Technical Data Sheet
PartsTable / MRO / 1521 CLASS 52
1521 CLASS 52 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 1521 CLASS 52 is a the manufacturer industrial component. Key specifications include color: UNABLE TO DECODE, material: STEEL, power_source: EXTERNAL, movement_type: MOVING COIL, PERMANENT MAGNET, pointer_color: BLACK SINGLE INDICATOR SINGLE RANGE, indicator_type: DIAL W/POINTER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-103-0228, 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→ 1521 CLASS 52
NSN: 6625-00-103-0228
FSC: 6625
CAGE: 65092 — SOLARTRON ELECTRONICS INC WESTON INSTRUMENTS DIV (USA)
SPECIFICATIONS
colorUNABLE TO DECODE
materialSTEEL
power_sourceEXTERNAL
movement_typeMOVING COIL, PERMANENT MAGNET
pointer_colorBLACK SINGLE INDICATOR SINGLE RANGE
indicator_typeDIAL W/POINTER
overall_length2.150 INCHES NOMINAL IN
overall_diameter2.695 INCHES NOMINAL IN
special_featuresRUGGEDIZED
special_markingsRED 0 INDICATOR LINE
style_designatorROUND FLUSH MTG
unable_to_decodeUNABLE TO DECODE
NSN6625-00-103-0228
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 1521 CLASS 52 TITLE COMPONENT PN 1521 CLASS 52 MFR 1521 CLASS 52
KEY FEATURES
•
METER BODY DIAMETER BEHIND MOUNTING FLANGE: 2.210 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 2.695 INCHES MAXIMUM IN
•
POINTER COLOR: BLACK SINGLE INDICATOR SINGLE RANGE
•
CIRCUIT ATTACHMENT METHOD AND QUANTITY: 2 THREADED STUD
•
MOUNTING FACILITY TYPE AND QUANTITY: 3 UNTHREADED HOLE(S)
•
SCALE GRADUATION TYPE: LINEAR SINGLE INDICATOR SINGLE RANGE
•
SCALE DIVISION QUANTITY: 10 SINGLE INDICATOR SINGLE RANGE
TECHNICAL CHARACTERISTICS (FLIS)
METER BODY DIAMETER BEHIND MOUNTING FLANGE2.210 INCHES MAXIMUM IN
OVERALL LENGTH2.067 INCHES MAXIMUM IN
OVERALL DIAMETER2.695 INCHES MAXIMUM IN
POINTER COLORBLACK SINGLE INDICATOR SINGLE RANGE
CIRCUIT ATTACHMENT METHOD AND QUANTITY2 THREADED STUD
MOUNTING FACILITY TYPE AND QUANTITY3 UNTHREADED HOLE(S)
SCALE GRADUATION TYPELINEAR SINGLE INDICATOR SINGLE RANGE
SCALE DIVISION QUANTITY10 SINGLE INDICATOR SINGLE RANGE
FEATURES PROVIDEDZERO ADJUSTER
MOUNTING BOLT CIRCLE DIAMETER2.440 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
265-720Upgraded Successor
successor cross-reference
successor
1521CLASS52Upgraded Successor
successor cross-reference
successor
2521-267117Upgraded Successor
successor cross-reference
successor
265-618Interchangeable
interchangeable cross-reference
interchangeable
GA51275Interchangeable
interchangeable cross-reference
interchangeable
GA52831Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1521 CLASS 52?
1521 CLASS 52 is a 1521 CLASS 52. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1521 CLASS 52?
There are 17 known substitutes for 1521 CLASS 52: 265-720, 1521CLASS52, 2521-267117 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1521 CLASS 52?
1521 CLASS 52 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-103-0228. 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