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A553 ✓ 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 CABLE ASSEMBLY,RADIO FREQUENCY is a the manufacturer cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include material: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS, design_type: NONREUSABLE, body_diameter: 4.781 INCHES NOMINAL IN, conductor_form: STRANDED ALL CONDUCTORSSTRANDED ALL CONDUCTORS, flow_direction: OUTSIDE IN, overall_length: 5.500 FEET5.500 FEET FT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5995-00-503-3023, 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
A553
NSN: 5995-00-503-3023
FSC: 5995
CAGE: 91820 — JETRONIC INDUSTRIES, INC. DBA JETRONIC INDUSTRIES, INC. DIV CONTRACTS (USA)
SPECIFICATIONS
materialPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
design_typeNONREUSABLE
body_diameter4.781 INCHES NOMINAL IN
conductor_formSTRANDED ALL CONDUCTORSSTRANDED ALL CONDUCTORS
flow_directionOUTSIDE IN
overall_length5.500 FEET5.500 FEET FT
style_designatorCYLINDRICAL W/ INTEGRAL OUTER CASING
features_providedBY-PASS VALVE
surface_treatmentTIN CORE CONDUCTOR ALL CONDUCTORSTIN CORE CONDUCTOR ALL CONDUCTORS
conductor_quantity22
body_overall_length5.875 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
NSN5995-00-503-3023
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CABLE ASSEMBLY,RADIO FREQUENCY TITLE COMPONENT PN A553 MFR CABLE ASSEMBLY,RADIO F
KEY FEATURES
•
CONDUCTOR ARRANGEMENT AND QUANTITY: 1 SINGLES AND 1 SINGLES AND 1 TWIN-AXIAL TWISTED1 TWIN-AXIAL TWISTED
•
CONDUCTOR FORM: STRANDED ALL CONDUCTORSSTRANDED ALL CONDUCTORS
•
CROSS SECTION OUTSIDE DIAMETER: 0.235 INCHES NOMINAL0.235 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORSQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
•
STRAND QUANTITY PER CONDUCTOR: 7 ALL CONDUCTORS7 ALL CONDUCTORS
•
SURFACE TREATMENT: TIN CORE CONDUCTOR ALL CONDUCTORSTIN CORE CONDUCTOR ALL CONDUCTORS
•
CONDUCTOR QUANTITY: 22
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
CONDUCTOR ARRANGEMENT AND QUANTITY1 SINGLES AND 1 SINGLES AND 1 TWIN-AXIAL TWISTED1 TWIN-AXIAL TWISTED
CONDUCTOR FORMSTRANDED ALL CONDUCTORSSTRANDED ALL CONDUCTORS
CROSS SECTION OUTSIDE DIAMETER0.235 INCHES NOMINAL0.235 INCHES NOMINAL IN
MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORSQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS7 ALL CONDUCTORS
SURFACE TREATMENTTIN CORE CONDUCTOR ALL CONDUCTORSTIN CORE CONDUCTOR ALL CONDUCTORS
CONDUCTOR QUANTITY22
CROSS-SECTIONAL SHAPE STYLEROUNDROUND
FSC APPLICATION DATAOSCILLOSCOPEOSCILLOSCOPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
P21SInterchangeable
interchangeable cross-reference
interchangeable
P21Interchangeable
interchangeable cross-reference
interchangeable
7378158Interchangeable
interchangeable cross-reference
interchangeable
15-004-6000-011Interchangeable
interchangeable cross-reference
interchangeable
A621Interchangeable
interchangeable cross-reference
interchangeable
657D1444B318AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A553?
A553 is a CABLE ASSEMBLY,RADIO FREQUENCY.
What parts can replace A553?
There are 11 known substitutes for A553: P21S, P21, 7378158 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A553?
A553 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5995-00-503-3023. 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