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RS518 ✓ 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

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include standard_bore_diameter: 3.188 INCHES IN, ring_set_component_parts: COMPRESSION RING,T1-2,77220,4; OIL RING,31-3,77220,4. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-358-3403, 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
RS518
NSN: 2805-00-358-3403
FSC: 2805
CAGE: 76255 — MCQUAY-NORRIS INC OEM DIV AN SKF INDUSTRIES CO
SPECIFICATIONS
standard_bore_diameter3.188 INCHES IN
ring_set_component_partsCOMPRESSION RING,T1-2,77220,4; OIL RING,31-3,77220,4
piston_accommodation_quantity4
NSN2805-00-358-3403
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER AUTOTRANSFORME TITLE COMPONENT PN RS518 MFR TRANSFORMER,POWER AUTO
KEY FEATURES
•
RING SET COMPONENT PARTS: COMPRESSION RING,T1-2,77220,4; OIL RING,31-3,77220,4
•
STANDARD BORE DIAMETER: 3.188 INCHES IN
•
PISTON ACCOMMODATION QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
RING SET COMPONENT PARTSCOMPRESSION RING,T1-2,77220,4; OIL RING,31-3,77220,4
STANDARD BORE DIAMETER3.188 INCHES IN
PISTON ACCOMMODATION QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
5999Interchangeable
interchangeable cross-reference
interchangeable
7999Interchangeable
interchangeable cross-reference
interchangeable
AS5999Interchangeable
interchangeable cross-reference
interchangeable
8624Interchangeable
interchangeable cross-reference
interchangeable
624Interchangeable
interchangeable cross-reference
interchangeable
5174Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RS518?
RS518 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace RS518?
There are 17 known substitutes for RS518: 5999, 7999, AS5999 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RS518?
RS518 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-358-3403. 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