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Technical Data Sheet
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421537 ✓ 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 material: COPPER CORE CONDUCTOR ALL CONDUCTORS, usage_design: POWER, binding_method: WIRE BOUND, first_leg_angle: 90.0 DEGREES NOMINAL, first_leg_style: CORNER RADIUS, first_leg_width: 1.510 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-801-0879, 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
421537
NSN: 5340-00-801-0879
FSC: 5340
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialCOPPER CORE CONDUCTOR ALL CONDUCTORS
usage_designPOWER
binding_methodWIRE BOUND
branch_quantity5
first_leg_angle90.0 DEGREES NOMINAL
first_leg_styleCORNER RADIUS
first_leg_width1.510 INCHES NOMINAL IN
first_leg_length0.970 INCHES NOMINAL IN
second_leg_styleEND RADIUS
second_leg_width0.500 INCHES NOMINAL IN
special_featuresCOLOR OF CABLE TO BE BROWN
style_designatorANGLE
NSN5340-00-801-0879
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 421537 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
•
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH: 0.250 INCHES NOMINAL IN
•
FIRST LEG HOLE ARRANGEMENT STYLE: TWO HOLES
•
FIRST LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH: 1.016 INCHES NOMINAL IN
•
SECOND LEG HOLE ARRANGEMENT STYLE: ONE HOLE
•
SECOND LEG STYLE: END RADIUS
•
SECOND LEG END RADIUS: 0.438 INCHES NOMINAL IN
•
FSC APPLICATION DATA: ENGINE,JET ACFT
•
SECOND LEG THICKNESS: 0.062 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH0.250 INCHES NOMINAL IN
FIRST LEG HOLE ARRANGEMENT STYLETWO HOLES
FIRST LEG DISTANCE BETWEEN HOLE CENTERS ALONG WIDTH1.016 INCHES NOMINAL IN
SECOND LEG HOLE ARRANGEMENT STYLEONE HOLE
SECOND LEG STYLEEND RADIUS
SECOND LEG END RADIUS0.438 INCHES NOMINAL IN
FSC APPLICATION DATAENGINE,JET ACFT
SECOND LEG THICKNESS0.062 INCHES NOMINAL IN
SECOND LEG HOLE DIAMETER0.219 INCHES NOMINAL IN
FIRST LEG HOLE DIAMETER0.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
421537Interchangeable
interchangeable cross-reference
interchangeable
4086974Interchangeable
interchangeable cross-reference
interchangeable
46205Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421537?
421537 is a CABLE ASSEMBLY,RADIO FREQUENCY.
What parts can replace 421537?
There are 3 known substitutes for 421537: 421537, 4086974, 46205. Substitute compatibility should be verified for your specific system.
What is the NSN for 421537?
421537 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-801-0879. 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