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Technical Data Sheet
4730PL1256379 ✓ 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

ADAPTER,STRAIGHT,SWIVEL FLANGE T. Key specifications include flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, nominal_thickness: 0.810 INCHES FIRST END IN, bolt_hole_quantity: 6 FIRST END, nominal_overall_length: 4.400 INCHES IN, nominal_outside_diameter: 5.560 INCHES FIRST END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-355-8649, 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
4730PL1256379
NSN: 4730-00-355-8649
FSC: 4730
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
flange_shapeROUND WITH HOLES FIRST END
connection_typeFLANGE FIRST END
nominal_thickness0.810 INCHES FIRST END IN
bolt_hole_quantity6 FIRST END
nominal_overall_length4.400 INCHES IN
nominal_outside_diameter5.560 INCHES FIRST END IN
bolt_hole_nominal_diameter0.560 INCHES FIRST END IN
raised_face_nominal_height0.015 INCHES FIRST END IN
bolt_circle_nominal_diameter4.440 INCHES FIRST END IN
raised_face_nominal_diameter3.280 INCHES FIRST END IN
criticality_code_justificationZZZY
nominal_inside_diameter_hose_accommodated2.500 INCHES SECOND END IN
NSN4730-00-355-8649
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4730PL1256379 · 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
CRITICALITY CODE JUSTIFICATION: ZZZY
BOLT HOLE NOMINAL DIAMETER: 0.560 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER: 5.560 INCHES FIRST END IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: ITEM THAT SUPPORTS A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
CONNECTION TYPE: FLANGE FIRST END
BOLT HOLE QUANTITY: 6 FIRST END
RAISED FACE NOMINAL DIAMETER: 3.280 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
BOLT HOLE NOMINAL DIAMETER0.560 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER5.560 INCHES FIRST END IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSITEM THAT SUPPORTS A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
CONNECTION TYPEFLANGE FIRST END
BOLT HOLE QUANTITY6 FIRST END
RAISED FACE NOMINAL DIAMETER3.280 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
NOMINAL OVERALL LENGTH4.400 INCHES IN
RAISED FACE NOMINAL HEIGHT0.015 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
FC9527-3240-189Interchangeable
interchangeable cross-reference
interchangeable
704-4685606 F44Interchangeable
interchangeable cross-reference
interchangeable
CG40-40PKInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4730PL1256379?
4730PL1256379 is a ADAPTER,STRAIGHT,SWIVEL FLANGE T.
What parts can replace 4730PL1256379?
There are 3 known substitutes for 4730PL1256379: FC9527-3240-189, 704-4685606 F44, CG40-40PK. Substitute compatibility should be verified for your specific system.
What is the NSN for 4730PL1256379?
4730PL1256379 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-355-8649. This indicates validated use in U.S. government and defense supply chains.
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