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Technical Data Sheet
A20558 ✓ 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 COUPLER,OPTOELECTRONIC is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 0.320 INCHES NOMINAL IN, overall_height: 0.440 INCHES NOMINAL IN, overall_length: 0.320 INCHES MAXIMUM IN, overall_diameter: 0.156 INCHES NOMINAL IN, storage_temp_range: -65.0 TO 125.0 CELSIUS DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1005-00-500-9300, 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
A20558
NSN: 1005-00-500-9300
FSC: 1005
CAGE: U4574 — FNH UK LTD (GBR)
SPECIFICATIONS
materialSTEEL
overall_width0.320 INCHES NOMINAL IN
overall_height0.440 INCHES NOMINAL IN
overall_length0.320 INCHES MAXIMUM IN
overall_diameter0.156 INCHES NOMINAL IN
storage_temp_range-65.0 TO 125.0 CELSIUS DEGC
supplementary_featuresLEAD FINISH
end_item_identificationM2 .50 CAL MACHINE GUN; NSN 1005-00-322-9715
part_name_assigned_by_controlling_agencyMICROCIRCUIT, HYBRID, LINEAR, DUAL AND QUAD CHANNEL, OPTICAL COUPLER
NSN1005-00-500-9300
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,OPTOELECTRONIC TITLE COMPONENT PN A20558 MFR COUPLER,OPTOELECTRONIC
KEY FEATURES
OVERALL DIAMETER: 0.156 INCHES NOMINAL IN
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.156 INCHES NOMINAL IN
MATERIALSTEEL
END ITEM IDENTIFICATIONM2 .50 CAL MACHINE GUN; NSN 1005-00-322-9715
OVERALL LENGTH0.663 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSPRING, HELICAL COMPRESSION
SPECIAL FEATURESCOIL DIRECTION RH; COIL QTY 11; TYPE ENDS - OPEN ENDS GROUNDS; WIRE DIA 0.027.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
10074259Interchangeable
interchangeable cross-reference
interchangeable
5504067Interchangeable
interchangeable cross-reference
interchangeable
A10197Interchangeable
interchangeable cross-reference
interchangeable
10-1742Interchangeable
interchangeable cross-reference
interchangeable
10-1742 PIECE 25Interchangeable
interchangeable cross-reference
interchangeable
A10363Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A20558?
A20558 is a COUPLER,OPTOELECTRONIC.
What parts can replace A20558?
There are 19 known substitutes for A20558: 10074259, 5504067, A10197 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A20558?
A20558 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1005-00-500-9300. This indicates validated use in U.S. government and defense supply chains.
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