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Technical Data Sheet
PartsTable / COMPONENT / 41X2
41X2 ✓ 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,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, rim_surface_width: 0.188 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, inner_groove_width: 0.110 INCHES NOMINAL IN, peripheral_diameter: 1.250 INCHES NOMINAL IN, center_hole_diameter: 0.875 INCHES NOMINAL IN, cross-sectional_height: 0.234 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-014-4303, 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
41X2
NSN: 4730-00-014-4303
FSC: 4730
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
rim_surface_width0.188 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
inner_groove_width0.110 INCHES NOMINAL IN
peripheral_diameter1.250 INCHES NOMINAL IN
center_hole_diameter0.875 INCHES NOMINAL IN
cross-sectional_height0.234 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
cross-sectional_shape_styleSPECIAL
NSN4730-00-014-4303
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 41X2 · 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
•
SPECIFICATION/STANDARD DATA: 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 4 FIGURE
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 24
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
LENGTH TO SHOULDER: 0.312 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA4 FIGURE
THREAD SERIESUNF
THREAD QUANTITY PER INCH24
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
SEAT ANGLE45.00 DEGREES NOMINAL
LENGTH TO SHOULDER0.312 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.312 INCHES IN
NUT STYLETUBE COUPLING
NUT HEIGHT0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
J512Interchangeable
interchangeable cross-reference
interchangeable
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
SAE J512 5 010111BInterchangeable
interchangeable cross-reference
interchangeable
326392PC4Interchangeable
interchangeable cross-reference
interchangeable
247949PC5Interchangeable
interchangeable cross-reference
interchangeable
12Z62PC3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 41X2?
41X2 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 41X2?
There are 23 known substitutes for 41X2: J512, SAE-J512, SAE J512 5 010111B and 20 more. Substitute compatibility should be verified for your specific system.
Is 41X2 still available?
41X2 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