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Technical Data Sheet
C20378 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
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 diameter: 0.204 INCHES NOMINAL IN, material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR, temp_rating: -30.0 CELSIUS AND 125.0 CELSIUS DEGC, overall_width: 0.375 INCHES NOMINAL IN, conductor_form: SOLID ALL CONDUCTORS, overall_length: 63.000 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-129-9984, 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
C20378
NSN: 5340-01-129-9984
FSC: 5340
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
temp_rating-30.0 CELSIUS AND 125.0 CELSIUS DEGC
overall_width0.375 INCHES NOMINAL IN
conductor_formSOLID ALL CONDUCTORS
group_quantity1
overall_length63.000 INCHES IN
style_designatorSTRAIGHT
termination_typeCOUPLING BOTH ENDS ALL CONDUCTORS
tongue_hole_typeROUND, UNTHREADED
precious_materialSILVER
surface_treatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
NSN5340-01-129-9984
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C20378 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
LOOP INSIDE DIAMETER: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
DIAMETER: 0.204 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.830 INCHES NOMINAL IN
MATERIAL: ALUMINUM ALLOY 2024 BAND
STYLE DESIGNATOR: OFFSET MOUNT
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
LOOP INSIDE DIAMETER0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
DIAMETER0.204 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.830 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024 BAND
STYLE DESIGNATOROFFSET MOUNT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
OVERALL WIDTH0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
CUSHIONING ENVIRONMENTAL PROTECTIONHEAT
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE CUSHION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
S2818Interchangeable
interchangeable cross-reference
interchangeable
106343Interchangeable
interchangeable cross-reference
interchangeable
179890Interchangeable
interchangeable cross-reference
interchangeable
1541AS163Interchangeable
interchangeable cross-reference
interchangeable
1541AS163-1Interchangeable
interchangeable cross-reference
interchangeable
3858Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C20378?
C20378 is a CABLE ASSEMBLY,RADIO FREQUENCY.
What parts can replace C20378?
There are 20 known substitutes for C20378: S2818, 106343, 179890 and 17 more. Substitute compatibility should be verified for your specific system.
Is C20378 still available?
C20378 is currently cancelled.
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