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Technical Data Sheet
PartsTable / COMPONENT / 8-8 CTS
8-8 CTS ✓ 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

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include flow_angle: 90.0 DEGREES, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: PLAIN (TUBE) FIRST END, nominal_thread_size: 0.500 INCHES SECOND END IN, thread_series_designator: UNF FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-273-6686, 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
8-8 CTS
NSN: 4730-00-273-6686
FSC: 4730
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
flow_angle90.0 DEGREES
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (TUBE) FIRST END
nominal_thread_size0.500 INCHES SECOND END IN
thread_series_designatorUNF FIRST END
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-00-273-6686
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8-8 CTS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
8CTXSSInterchangeable
interchangeable cross-reference
interchangeable
8-8CBTX-SSInterchangeable
interchangeable cross-reference
interchangeable
MS51504Interchangeable
interchangeable cross-reference
interchangeable
35309210Interchangeable
interchangeable cross-reference
interchangeable
CV177889Interchangeable
interchangeable cross-reference
interchangeable
8-8CTX-SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8-8 CTS?
8-8 CTS is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 8-8 CTS?
There are 31 known substitutes for 8-8 CTS: 8CTXSS, 8-8CBTX-SS, MS51504 and 28 more. Substitute compatibility should be verified for your specific system.
Is 8-8 CTS still available?
8-8 CTS is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026