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Technical Data Sheet
PartsTable / COMPONENT / 4803-2(3INCH)
4803-2(3INCH) ✓ 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 4803-2(3INCH) is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-757-4492, 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
4803-2(3INCH)
NSN: 4730-00-757-4492
FSC: 4730
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
Part Number4803-2(3INCH)
NSN4730-00-757-4492
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4803-2(3INCH) · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
•
NOMINAL OVERALL LENGTH: 2.595 INCHES IN
•
NOMINAL PIPE SIZE ACCOMMODATED: 3.000 INCHES SECOND END IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
•
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: SCHEDULE STD SECOND END
•
CONNECTION STYLE: SOCKET (PIPE) SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
NOMINAL OVERALL LENGTH2.595 INCHES IN
NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES SECOND END IN
THREAD SERIES DESIGNATORNPT FIRST END
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE STD SECOND END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
CONNECTION STYLESOCKET (PIPE) SECOND END
NOMINAL THREAD SIZE3.000 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
3703Interchangeable
interchangeable cross-reference
interchangeable
577R723H02Interchangeable
interchangeable cross-reference
interchangeable
1003704-13Interchangeable
interchangeable cross-reference
interchangeable
387993C91Interchangeable
interchangeable cross-reference
interchangeable
FD72280Interchangeable
interchangeable cross-reference
interchangeable
1452Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4803-2(3INCH)?
4803-2(3INCH) is a 4803-2(3INCH).
What parts can replace 4803-2(3INCH)?
There are 23 known substitutes for 4803-2(3INCH): 3703, 577R723H02, 1003704-13 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4803-2(3INCH)?
4803-2(3INCH) is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-757-4492. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026