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Technical Data Sheet
PartsTable / MRO / 81659
81659 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, body_width: 4.750 INCHES MAXIMUM IN, body_height: 3.000 INCHES MAXIMUM IN, body_length: 8.000 INCHES MAXIMUM IN, body_material: METAL, inclosure_type: ENCASED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-138-8172, 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→ 81659
NSN: 2530-00-138-8172
FSC: 2530
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
body_width4.750 INCHES MAXIMUM IN
body_height3.000 INCHES MAXIMUM IN
body_length8.000 INCHES MAXIMUM IN
body_materialMETAL
inclosure_typeENCASED
overall_length10.000 INCHES NOMINAL IN
special_featuresSTAINLESS STEEL.
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
cross-sectional_thickness0.060 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
load_impedance_per_function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
NSN2530-00-138-8172
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 81659 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,0.109 O/A LG,0.625 IN.H,0.469 IN.TAPERED DIA,0.219 IN.W/SLOT,0.250 IN.DEPH SLOT,0.406 IN.DR.DIA,0.578 IN.DRDEPH,0.625 IN.OD IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,0.109 O/A LG,0.625 IN.H,0.469 IN.TAPERED DIA,0.219 IN.W/SLOT,0.250 IN.DEPH SLOT,0.406 IN.DR.DIA,0.578 IN.DRDEPH,0.625 IN.OD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
M1650Interchangeable
interchangeable cross-reference
interchangeable
B2850-3517Interchangeable
interchangeable cross-reference
interchangeable
M1272Interchangeable
interchangeable cross-reference
interchangeable
81659Interchangeable
interchangeable cross-reference
interchangeable
E030186Interchangeable
Same NIIN cross-reference
interchangeable
312168Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81659?
81659 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 81659?
There are 7 known substitutes for 81659: M1650, B2850-3517, M1272 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81659?
81659 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-138-8172. 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