PartsTable
Technical Data Sheet
AN6241-8 ✓ 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

COUPLING ASSEMBLY,QUICK DISCONNE. Key specifications include material: ALUMINUM ALLOY OVERALL, leg_length: 0.656 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, thread_class: 2A FIRST FLUID END CONNECTION A, overall_length: 3.990 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-433-2574, 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
AN6241-8
NSN: 4730-00-433-2574
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length0.656 INCHES NOMINAL IN
seat_angle37.0 DEGREES
thread_class2A FIRST FLUID END CONNECTION A
overall_length3.990 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARED FIRST FLUID END CONNECTION
style_designatorCOUPLING ASSEMBLY
features_providedSELF-SEALING
nominal_thread_size0.750 INCHES FIRST FLUID END CONNECTION IN
quick_disconnect_methodQUICK LEAD THREAD ALL ENDS
thread_series_designatorUNF FIRST FLUID END CONNECTION
NSN4730-00-433-2574
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN6241-8 · 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 CLASS: 2A FIRST FLUID END CONNECTION A
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHOD: QUICK LEAD THREAD ALL ENDS
LEG LENGTH: 0.656 INCHES NOMINAL IN
FEATURES PROVIDED: SELF-SEALING
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST FLUID END CONNECTION IN
SEAT ANGLE: 37.0 DEGREES
CONNECTION STYLE: FLARED FIRST FLUID END CONNECTION
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A FIRST FLUID END CONNECTION A
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHODQUICK LEAD THREAD ALL ENDS
LEG LENGTH0.656 INCHES NOMINAL IN
FEATURES PROVIDEDSELF-SEALING
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST FLUID END CONNECTION IN
SEAT ANGLE37.0 DEGREES
CONNECTION STYLEFLARED FIRST FLUID END CONNECTION
OVERALL LENGTH3.990 INCHES NOMINAL IN
STYLE DESIGNATORCOUPLING ASSEMBLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
1418DInterchangeable
interchangeable cross-reference
interchangeable
22-327-4Interchangeable
interchangeable cross-reference
interchangeable
SN4508PCDE50634Interchangeable
interchangeable cross-reference
interchangeable
76216AInterchangeable
interchangeable cross-reference
interchangeable
3812AInterchangeable
interchangeable cross-reference
interchangeable
18258Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN6241-8?
AN6241-8 is a COUPLING ASSEMBLY,QUICK DISCONNE.
What parts can replace AN6241-8?
There are 9 known substitutes for AN6241-8: 1418D, 22-327-4, SN4508PCDE50634 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN6241-8?
AN6241-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-433-2574. This indicates validated use in U.S. government and defense supply chains.
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