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N439 — STRAINER,SEDIMENT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N439: STRAINER,SEDIMENT.

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 part is cataloged in the U.S.

Government catalog 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
NIINs: 002167858, 012153334
FSC: 4820 — Valves, Nonpowered
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
•
OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
OVERALL LENGTH2.438 INCHES NOMINAL IN
INSIDE DIAMETER2.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 8
N477PC223Reference document
Same NSN cross-reference
Reference document — Secondary reference
N565PC223Reference document
Same NSN cross-reference
Reference document — Secondary reference
4A801Reference document
Same NSN cross-reference
Reference document — Secondary reference
N411PC223Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N439PC223Reference document
Same NSN cross-reference
Reference document — Secondary reference
N476PC223Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N439?
N439 is a STRAINER,SEDIMENT.
What parts can replace N439?
There are 8 known substitutes for N439: N477PC223, N565PC223, 4A801 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N439?
N439 is cataloged in the U.S. Government catalog under NSN 4820-00-216-7858. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.