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2285-301 PIECE 4 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2285-301 PIECE 4: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include special_features: E/I:3IN.X3IN.X3 IN.,3 PORT BALL LINE VALVE,2 WAY SEAL 0-700 PSI.WP IN, end_item_identification: LOS ANGELES CLASS SSN (688). This part is cataloged in the U.S.

Government catalog under NSN 4820-01-486-3713, 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
2285-301 PIECE 4
NSN: 4820-01-486-3713
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
special_featuresE/I:3IN.X3IN.X3 IN.,3 PORT BALL LINE VALVE,2 WAY SEAL 0-700 PSI.WP IN
end_item_identificationLOS ANGELES CLASS SSN (688)
NSN4820-01-486-3713
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2285-301 PIECE 4 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESE/I:3IN.X3IN.X3 IN.,3 PORT BALL LINE VALVE,2 WAY SEAL 0-700 PSI.WP IN
END ITEM IDENTIFICATIONLOS ANGELES CLASS SSN (688)
SUBSTITUTES & CROSS-REFERENCES 2
256121 PIECE 11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
256121Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2285-301 PIECE 4?
2285-301 PIECE 4 is a SEAT,VALVE.
What parts can replace 2285-301 PIECE 4?
There are 2 known substitutes for 2285-301 PIECE 4: 256121 PIECE 11, 256121. Substitute compatibility should be verified for your specific system.
What is the NSN for 2285-301 PIECE 4?
2285-301 PIECE 4 is cataloged in the U.S. Government catalog under NSN 4820-01-486-3713. This indicates validated use in U.S. government and defense supply chains.
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