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Technical Data Sheet
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5BTX ✓ 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

REVERSE BAND,AUTOMATIC TRANSMISS. Key specifications include material: COPPER ALLOY OR STEEL COMP 12L14 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.670 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES NOMINAL, thread_class: 2B, thread_series: UNF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-618-8589, 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
5BTX
NSN: 4730-00-618-8589
FSC: 4730
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OR STEEL COMP 12L14 OVERALL
nut_styleTUBE COUPLING
nut_height0.670 INCHES NOMINAL IN
seat_angle37.0 DEGREES NOMINAL
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
fabrication_methodMACHINED
length_to_shoulder0.579 INCHES NOMINAL IN
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES IN
smallest_inside_diameter0.375 INCHES NOMINAL IN
NSN4730-00-618-8589
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5BTX · 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 DIRECTION: RIGHT-HAND
•
NUT STYLE: TUBE COUPLING
•
MATERIAL: COPPER ALLOY OR STEEL COMP 12L14 OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
LENGTH TO SHOULDER: 0.579 INCHES NOMINAL IN
•
SEAT ANGLE: 37.0 DEGREES NOMINAL
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT STYLETUBE COUPLING
MATERIALCOPPER ALLOY OR STEEL COMP 12L14 OVERALL
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH20
LENGTH TO SHOULDER0.579 INCHES NOMINAL IN
SEAT ANGLE37.0 DEGREES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER0.312 INCHES IN
FABRICATION METHODMACHINED
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
11240409-5Interchangeable
interchangeable cross-reference
interchangeable
3-2149-7Interchangeable
interchangeable cross-reference
interchangeable
A318Interchangeable
interchangeable cross-reference
interchangeable
AN818-20JInterchangeable
interchangeable cross-reference
interchangeable
GN10FA-20Interchangeable
interchangeable cross-reference
interchangeable
8 070110BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5BTX?
5BTX is a REVERSE BAND,AUTOMATIC TRANSMISS.
What parts can replace 5BTX?
There are 32 known substitutes for 5BTX: 11240409-5, 3-2149-7, A318 and 29 more. Substitute compatibility should be verified for your specific system.
Is 5BTX still available?
5BTX 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