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Technical Data Sheet
PartsTable / COMPONENT / 4589K27
4589K27 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

RING ASSEMBLY,ELECTRICAL CONTACT. Key specifications include material: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL, flow_angle: 90.0 DEGREES, leg_length: 2.812 INCHES NOMINAL ALL ENDS IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, operating_pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-247-9529, 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
4589K27
NSN: 4730-00-247-9529
FSC: 4730
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
flow_angle90.0 DEGREES
leg_length2.812 INCHES NOMINAL ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size2.000 INCHES ALL ENDS IN
maximum_operating_temp23.9 CELSIUS SINGLE RESPONSE DEGC
thread_series_designatorNPT ALL ENDS
nominal_pipe_size_accommodated2.000 INCHES ALL ENDS IN
NSN4730-00-247-9529
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4589K27 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
•
FLOW ANGLE: 90.0 DEGREES
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 23.9 CELSIUS SINGLE RESPONSE DEGC
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
FLOW ANGLE90.0 DEGREES
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP23.9 CELSIUS SINGLE RESPONSE DEGC
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
LEG LENGTH2.812 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE2.000 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
520-950Interchangeable
interchangeable cross-reference
interchangeable
2-9-108Interchangeable
interchangeable cross-reference
interchangeable
2-2-55Interchangeable
interchangeable cross-reference
interchangeable
F437Interchangeable
interchangeable cross-reference
interchangeable
1751640Interchangeable
interchangeable cross-reference
interchangeable
6579Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4589K27?
4589K27 is a RING ASSEMBLY,ELECTRICAL CONTACT.
What parts can replace 4589K27?
There are 10 known substitutes for 4589K27: 520-950, 2-9-108, 2-2-55 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4589K27?
4589K27 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-247-9529. 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