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Technical Data Sheet
PartsTable / COMPONENT / 1-2FNTX-SS
1-2FNTX-SS ✓ 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 material: STEEL CORROSION RESISTING OVERALL, seat_angle: 37.0 DEGREES, thread_class: 2B INTERNAL, connection_style: FLARE, style_designator: CAP, thread_direction: RIGHT-HAND INTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-781-8263, 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
1-2FNTX-SS
NSN: 4730-00-781-8263
FSC: 4730
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES
thread_class2B INTERNAL
connection_styleFLARE
style_designatorCAP
thread_directionRIGHT-HAND INTERNAL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.750 INCHES INTERNAL IN
thread_series_designatorUNF INTERNAL
specification/standard_data96906-MS51532 GOVERNMENT STANDARD
tube_outside_diameter_for_which_designed0.500 INCHES NOMINAL IN
NSN4730-00-781-8263
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1-2FNTX-SS · 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
•
MATERIAL: STEEL COMP 316 OVERALL
•
STYLE DESIGNATOR: CAP, TUBE, FLARED
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
THREAD CLASS: 2B INTERNAL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SEAT ANGLE: 37.0 DEGREES
•
THREAD SERIES DESIGNATOR: UN INTERNAL
•
CONNECTION STYLE: PRESSURE SEAL FLARED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 316 OVERALL
STYLE DESIGNATORCAP, TUBE, FLARED
THREAD DIRECTIONRIGHT-HAND INTERNAL
THREAD CLASS2B INTERNAL
SURFACE TREATMENTPASSIVATE OVERALL
SEAT ANGLE37.0 DEGREES
THREAD SERIES DESIGNATORUN INTERNAL
CONNECTION STYLEPRESSURE SEAL FLARED
THREAD QUANTITY PER INCH12 INTERNAL
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
SAE-AS4841Interchangeable
interchangeable cross-reference
interchangeable
AS4841Interchangeable
interchangeable cross-reference
interchangeable
185875Interchangeable
interchangeable cross-reference
interchangeable
8FNTXSSInterchangeable
interchangeable cross-reference
interchangeable
12-FNTX-BInterchangeable
interchangeable cross-reference
interchangeable
MS51532-B12SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-2FNTX-SS?
1-2FNTX-SS is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 1-2FNTX-SS?
There are 7 known substitutes for 1-2FNTX-SS: SAE-AS4841, AS4841, 185875 and 4 more. Substitute compatibility should be verified for your specific system.
Is 1-2FNTX-SS still available?
1-2FNTX-SS 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