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Technical Data Sheet
PartsTable / COMPONENT / WW-P-491
WW-P-491 ✓ 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 LATERAL,DRAINAGE PIPE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, flow_angle: 90.0 DEGREES, leg_length: 4.125 INCHES NOMINAL THIRD END IN, sweep_type: SHORT, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: DRAINAGE (PIPE) ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-027-0903, 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
WW-P-491
NSN: 4730-00-027-0903
FSC: 4730
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialIRON OVERALL
flow_angle90.0 DEGREES
leg_length4.125 INCHES NOMINAL THIRD END IN
sweep_typeSHORT
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_styleDRAINAGE (PIPE) ALL ENDS
style_designatorBRANCHED
surface_treatmentZINC INSIDE
nominal_thread_size2.000 INCHES FIRST END IN
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data1 TYPE AND 7 TABLE
specification/standard_data81348-WW-P-491 GOVERNMENT SPECIFICATION
NSN4730-00-027-0903
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WW-P-491 · 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 STYLE: DRAINAGE (PIPE) THIRD END
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES FIRST END IN
•
LEG LENGTH: 4.062 INCHES NOMINAL SECOND END IN
•
NOMINAL THREAD SIZE: 2.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEDRAINAGE (PIPE) THIRD END
CONNECTION STYLEDRAINAGE (PIPE) FIRST END
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES THIRD END IN
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES SECOND END IN
CONNECTION STYLEDRAINAGE (PIPE) SECOND END
LEG LENGTH4.062 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE2.000 INCHES FIRST END IN
NOMINAL THREAD SIZE1.500 INCHES THIRD END IN
MATERIALIRON OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WW-P-491?
WW-P-491 is a LATERAL,DRAINAGE PIPE.
What is the NSN for WW-P-491?
WW-P-491 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-027-0903. 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