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Technical Data Sheet
PartsTable / COMPONENT / 4231-59
4231-59 ✓ 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 WIRING HARNESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flow_angle: 45.0 DEGREES, leg_length: 0.687 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-008-5939, 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
4231-59
NSN: 5330-00-008-5939
FSC: 5330
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle45.0 DEGREES
leg_length0.687 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
surface_treatmentCADMIUM OR ZINC OUTSIDE
nominal_thread_size0.562 INCHES FIRST END IN
center_hole_diameter2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
thread_series_designatorUNF FIRST END
NSN5330-00-008-5939
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4231-59 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEO-RING
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
423159Interchangeable
interchangeable cross-reference
interchangeable
4231-4Interchangeable
interchangeable cross-reference
interchangeable
4231Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4231-59?
4231-59 is a WIRING HARNESS.
What parts can replace 4231-59?
There are 3 known substitutes for 4231-59: 423159, 4231-4, 4231. Substitute compatibility should be verified for your specific system.
What is the NSN for 4231-59?
4231-59 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-008-5939. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026