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Technical Data Sheet
PartsTable / COMPONENT / 4803-2 2IN.
4803-2 2IN. ✓ 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 2IN. is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-475-8591, 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 2IN.
NSN: 4730-00-475-8591
FSC: 4730
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
Part Number4803-2 2IN.
NSN4730-00-475-8591
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4803-2 2IN. · 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
•
NOMINAL THREAD SIZE: 2.000 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE SECOND END
•
CONNECTION STYLE: SOCKET (PIPE) SECOND END
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 2.656 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE2.000 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT FIRST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
CONNECTION STYLESOCKET (PIPE) SECOND END
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH2.656 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
STYLE DESIGNATORGROOVED AND THREADED INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
F-554-313Interchangeable
interchangeable cross-reference
interchangeable
554F003702Interchangeable
interchangeable cross-reference
interchangeable
BA10004-323Interchangeable
interchangeable cross-reference
interchangeable
509438-4Interchangeable
interchangeable cross-reference
interchangeable
4-141Interchangeable
interchangeable cross-reference
interchangeable
B1616M0DEL501Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4803-2 2IN.?
4803-2 2IN. is a 4803-2 2IN..
What parts can replace 4803-2 2IN.?
There are 19 known substitutes for 4803-2 2IN.: F-554-313, 554F003702, BA10004-323 and 16 more. Substitute compatibility should be verified for your specific system.
Is 4803-2 2IN. still available?
4803-2 2IN. 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