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4730PL2091348 ✓ 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: ALUMINUM ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A CENTER BULKHEAD A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, surface_treatment: ANODIZE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-6439, 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
4730PL2091348
NSN: 4730-00-277-6439
FSC: 4730
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class3A CENTER BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
surface_treatmentANODIZE OVERALL
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length2.453 INCHES IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
specification/standard_data81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-00-277-6439
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4730PL2091348 · 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: 3A CENTER BULKHEAD A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) SECOND END
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
•
NOMINAL OVERALL LENGTH: 2.453 INCHES IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A CENTER BULKHEAD A
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL OVERALL LENGTH2.453 INCHES IN
SURFACE TREATMENTANODIZE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
MATERIALALUMINUM ALLOY OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AS4841Interchangeable
interchangeable cross-reference
interchangeable
AN818-8DInterchangeable
interchangeable cross-reference
interchangeable
AN818-80Interchangeable
interchangeable cross-reference
interchangeable
Z00.N7730062094Interchangeable
Same NIIN cross-reference
interchangeable
3110119Interchangeable
Same NIIN cross-reference
interchangeable
AS5406Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4730PL2091348?
4730PL2091348 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 4730PL2091348?
There are 9 known substitutes for 4730PL2091348: AS4841, AN818-8D, AN818-80 and 6 more. Substitute compatibility should be verified for your specific system.
Is 4730PL2091348 still available?
4730PL2091348 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