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Technical Data Sheet
PartsTable / COMPONENT / R.2.558
R.2.558 ✓ 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 R.2.558 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-105-9625, 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
R.2.558
NSN: 5905-00-105-9625
FSC: 5905
CAGE: K0405 — WESTON AEROSPACE LTD DIV WESTON AEROSPACE LTD (GBR)
SPECIFICATIONS
Part NumberR.2.558
NSN5905-00-105-9625
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available R.2.558 TITLE COMPONENT PN R.2.558 MFR R.2.558
KEY FEATURES
•
POWER DISSIPATION RATING IN WATTS: 0.500 FREE AIR
•
INCLOSURE TYPE: ENCAPSULATED
•
STYLE DESIGNATOR: TERMINALS EACH END
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
MOUNTING HOLE SIZE: 0.260 INCHES NOMINAL IN
•
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER: 125.0
•
TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS: -55.0 TO 125.0
•
TERMINAL LENGTH: 0.694 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
POWER DISSIPATION RATING IN WATTS0.500 FREE AIR
INCLOSURE TYPEENCAPSULATED
STYLE DESIGNATORTERMINALS EACH END
RELIABILITY INDICATORNOT ESTABLISHED
MOUNTING HOLE SIZE0.260 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER125.0
TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS-55.0 TO 125.0
TERMINAL LENGTH0.694 INCHES MAXIMUM IN
BODY HEIGHT0.470 INCHES MAXIMUM IN
TERMINAL TYPETAB, SOLDER LUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
R2558Interchangeable
interchangeable cross-reference
interchangeable
SM-B-619160Interchangeable
interchangeable cross-reference
interchangeable
PL19D4135Interchangeable
interchangeable cross-reference
interchangeable
M522G4Interchangeable
interchangeable cross-reference
interchangeable
R2556BInterchangeable
interchangeable cross-reference
interchangeable
6862400-23Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R.2.558?
R.2.558 is a R.2.558.
What parts can replace R.2.558?
There are 6 known substitutes for R.2.558: R2558, SM-B-619160, PL19D4135 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R.2.558?
R.2.558 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-105-9625. 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