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Technical Data Sheet
PartsTable / COMPONENT / R-503
R-503 ✓ Verified by PartsTable
— · CABLE ASSEMBLY
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.250 INCHES NOMINAL IN, filter: INCLUDED, length: 0.620 INCHES NOMINAL IN, material: ALUMINUM ALLOY BODY, thickness: 0.750 INCHES NOMINAL IN, top_style: FLAT WITH LEFT AND RIGHT EDGE BEVELED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-01-597-9377, 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-503
NSN: 5999-01-597-9377
FSC: 5999
CAGE: 49AT7 — TEST CONNECTIONS, INC. (USA)
SPECIFICATIONS
width0.250 INCHES NOMINAL IN
filterINCLUDED
length0.620 INCHES NOMINAL IN
materialALUMINUM ALLOY BODY
thickness0.750 INCHES NOMINAL IN
top_styleFLAT WITH LEFT AND RIGHT EDGE BEVELED
body_styleANGLE
bore_shapeSTRAIGHT
side_angle6.3 DEGREES NOMINAL
bevel_depth0.280 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF
bevel_length0.180 INCHES NOMINAL IN
NSN5999-01-597-9377
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN R-503 MFR BRUSH,ELECTRICAL CONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
R503Interchangeable
interchangeable cross-reference
interchangeable
186341PC232Interchangeable
interchangeable cross-reference
interchangeable
185476PC232Interchangeable
interchangeable cross-reference
interchangeable
186322PC232Interchangeable
interchangeable cross-reference
interchangeable
1906945Interchangeable
interchangeable cross-reference
interchangeable
19D6945Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R-503?
R-503 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace R-503?
There are 9 known substitutes for R-503: R503, 186341PC232, 185476PC232 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R-503?
R-503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-01-597-9377. 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