PartsTable
Technical Data Sheet
1B5227 ✓ 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 angle: 45.0 DEGREES, height: 12.7 MILLIMETERS MINIMUM AND 14.7 MILLIMETERS MAXIMUM MM, material: STEEL BODY, seat_angle: 37.0 RADIANS FIRST END, shank_length: 3.8 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM, thread_class: 3A ALL ENDS A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-189-0526, 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
1B5227
NSN: 4730-01-189-0526
FSC: 4730
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
angle45.0 DEGREES
height12.7 MILLIMETERS MINIMUM AND 14.7 MILLIMETERS MAXIMUM MM
materialSTEEL BODY
seat_angle37.0 RADIANS FIRST END
shank_length3.8 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
special_featuresAZF ENGINE, AIRCRAFT, J-57 ALL MODELS (C-135, EC-135, B-5
style_designatorSTRAIGHT
surface_treatmentZINC OVERALL
width_across_flats7.94 MILLIMETERS NOMINAL MM
NSN4730-01-189-0526
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1B5227 · 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 19
43716Interchangeable
interchangeable cross-reference
interchangeable
J534Interchangeable
interchangeable cross-reference
interchangeable
4730002784216Interchangeable
interchangeable cross-reference
interchangeable
930228Interchangeable
interchangeable cross-reference
interchangeable
43706Interchangeable
interchangeable cross-reference
interchangeable
10P40Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B5227?
1B5227 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 1B5227?
There are 19 known substitutes for 1B5227: 43716, J534, 4730002784216 and 16 more. Substitute compatibility should be verified for your specific system.
Is 1B5227 still available?
1B5227 is currently cancelled.
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