PartsTable
Technical Data Sheet
42521 ✓ Verified by PartsTable
Lena · 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

LENA® Sewing machine with control indicator light, tension dial, protective cover, foot pedal, on/off switch, handwheel, spool compartment and easy carrying handle. Key specifications include color: WHITE SINGLE ACTUATOR, shape: ROUND, material: PLASTIC LENS, tip_width: 0.070 INCHES NOMINAL IN, body_style: PANEL MOUNT, body_width: 0.680 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-645-7318, 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
42521
NSN: 5950-00-645-7318
FSC: 5950
CAGE: 73386 — FREED TRANSFORMER CO (USA)
SPECIFICATIONS
colorWHITE SINGLE ACTUATOR
shapeROUND
materialPLASTIC LENS
tip_width0.070 INCHES NOMINAL IN
body_stylePANEL MOUNT
body_width0.680 INCHES NOMINAL IN
lens_colorAMBER
body_height1.470 INCHES NOMINAL IN
body_length0.680 INCHES NOMINAL IN
cover_colorBLACK
overall_width0.740 INCHES NOMINAL IN
actuator_styleRECTANGULAR
NSN5950-00-645-7318
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Lena FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 42521 MFR Lena FILTER,RADIO FREQUENCY
KEY FEATURES
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
RELIABILITY INDICATOR: NOT ESTABLISHED
FREQUENCY RATING: 50.0 HERTZ NOMINAL SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY HEIGHT: 2.625 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
IMPEDANCE RATING IN OHMS: 850000.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
MOUNTING METHOD: THREADED STUD(S) SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
FREQUENCY RATING50.0 HERTZ NOMINAL SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY HEIGHT2.625 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
IMPEDANCE RATING IN OHMS850000.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
MOUNTING METHODTHREADED STUD(S) SINGLE GROUP
THREAD QUANTITY PER INCH32 SINGLE GROUP
NOMINAL THREAD SIZE0.138 INCHES SINGLE GROUP IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
N5640Interchangeable
interchangeable cross-reference
interchangeable
C0-51FInterchangeable
interchangeable cross-reference
interchangeable
673-0281-00Interchangeable
interchangeable cross-reference
interchangeable
2BC437Interchangeable
interchangeable cross-reference
interchangeable
42521Interchangeable
interchangeable cross-reference
interchangeable
1223-685Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42521?
42521 is a FILTER,RADIO FREQUENCY INTERFERE manufactured by Lena.
What parts can replace 42521?
There are 16 known substitutes for 42521: N5640, C0-51F, 673-0281-00 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 42521?
42521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-645-7318. This indicates validated use in U.S. government and defense supply chains.
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