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Technical Data Sheet
PartsTable / COMPONENT / 3A0137B
3A0137B ✓ 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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include shape: ROUND, material: STEEL OVERALL, body_style: SIDE BARRIER TYPE, bore_shape: STRAIGHT, bulb_style: T ("U" SHAPED TUBULAR), head_angle: 15.0 DEGREES NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-9539, 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
3A0137B
NSN: 4730-00-202-9539
FSC: 4730
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
shapeROUND
materialSTEEL OVERALL
body_styleSIDE BARRIER TYPE
bore_shapeSTRAIGHT
bulb_styleT ("U" SHAPED TUBULAR)
head_angle15.0 DEGREES NOMINAL
lens_colorCOLORLESS AND RED
bonnet_typeINSIDE SCREW
design_typeDRY
intake_holeNOT INCLUDED
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_recessNOT INCLUDED
NSN4730-00-202-9539
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3A0137B · 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 23
892787R1Interchangeable
interchangeable cross-reference
interchangeable
423850Interchangeable
interchangeable cross-reference
interchangeable
554541Interchangeable
interchangeable cross-reference
interchangeable
700290Interchangeable
interchangeable cross-reference
interchangeable
P600Interchangeable
interchangeable cross-reference
interchangeable
319696-553Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3A0137B?
3A0137B is a REDUCER,TUBE.
What parts can replace 3A0137B?
There are 23 known substitutes for 3A0137B: 892787R1, 423850, 554541 and 20 more. Substitute compatibility should be verified for your specific system.
Is 3A0137B still available?
3A0137B 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