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N439 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The STRAINER,SEDIMENT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, mounting_type: INLET CONNECTION AND OUTLET CONNECTION TOP SIDE, overall_length: 2.438 INCHES NOMINAL IN, inside_diameter: 2.000 INCHES NOMINAL IN, outside_diameter: 2.250 INCHES NOMINAL IN, style_designator: Y STRAINER W/BOLTED COVER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-216-7858, 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
N439
NSN: 4820-00-216-7858
FSC: 4820
CAGE: 88663 — DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
mounting_typeINLET CONNECTION AND OUTLET CONNECTION TOP SIDE
overall_length2.438 INCHES NOMINAL IN
inside_diameter2.000 INCHES NOMINAL IN
outside_diameter2.250 INCHES NOMINAL IN
style_designatorY STRAINER W/BOLTED COVER
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
perforation_diameter0.057 INCHES NOMINAL IN
perforation_quantity144.0 PER SQUARE INCH
filtering_media_designPERFORATED SINGLE FILTERING MEDIA RESPONSE
media_for_which_designedWATER
first_intake_connection_typePLAIN FACE FLANGE TOP SIDE
NSN4820-00-216-7858
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N439 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER2.000 INCHES NOMINAL IN
OVERALL LENGTH2.438 INCHES NOMINAL IN
OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
N439Interchangeable
interchangeable cross-reference
interchangeable
N439-3INFLGE250PSIInterchangeable
interchangeable cross-reference
interchangeable
852MMInterchangeable
interchangeable cross-reference
interchangeable
N477PC223Interchangeable
Same NIIN cross-reference
interchangeable
N565PC223Interchangeable
Same NIIN cross-reference
interchangeable
4A801Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N439?
N439 is a STRAINER,SEDIMENT.
What parts can replace N439?
There are 11 known substitutes for N439: N439, N439-3INFLGE250PSI, 852MM and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N439?
N439 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-216-7858. 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: August 2026