PartsTable
Technical Data Sheet
AN6221-8 ✓ 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

The COUPLING HALF,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, seat_angle: 37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED, thread_class: 3A ALL ENDS A, overall_length: 1.790 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: FLARED ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-9408, 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
AN6221-8
NSN: 4730-00-202-9408
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
seat_angle37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED
thread_class3A ALL ENDS A
overall_length1.790 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARED ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentANODIZE BODY
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES ALL ENDS IN
thread_series_designatorUNF ALL ENDS
NSN4730-00-202-9408
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN6221-8 · 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
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FEATURES PROVIDED: SELF-SEALING
THREAD SERIES DESIGNATOR: UNF ALL ENDS
THREAD CLASS: 3A ALL ENDS A
CONNECTION STYLE: FLARED ALL ENDS
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FEATURES PROVIDEDSELF-SEALING
THREAD SERIES DESIGNATORUNF ALL ENDS
THREAD CLASS3A ALL ENDS A
CONNECTION STYLEFLARED ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
FEATURES PROVIDEDSELF-SEALING
OVERALL LENGTH1.790 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SEAT ANGLE37.0 DEGREES LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
AN6220-8Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-5502Interchangeable
interchangeable cross-reference
interchangeable
140S2-8DInterchangeable
interchangeable cross-reference
interchangeable
157-6DInterchangeable
interchangeable cross-reference
interchangeable
157-6Interchangeable
interchangeable cross-reference
interchangeable
AN6220-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN6221-8?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is AN6221-8?
AN6221-8 is a COUPLING HALF,SELF-SEALING.
What parts can replace AN6221-8?
There are 7 known substitutes for AN6221-8: AN6220-8, MIL-C-5502, 140S2-8D and 4 more. Substitute compatibility should be verified for your specific system.
Is AN6221-8 still available?
AN6221-8 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — AN6221-8