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D6891566 — PISTON,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D6891566: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include special_features: INCLUDES MOUNT AND MOUNT SCREWS AND WASHERS, end_item_identification: ARLEIGH BURKE CLASS DDG, valve_design_control_activity: 6V279, valve_type_for_which_designed: PRESSURE REDUCING. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-416-4565, 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
D6891566
NSN: 4820-01-416-4565
FSC: 4820 — Valves, Nonpowered
CAGE: 6V279 — ANDERSON METAL INDUSTRIES INC (USA)
SPECIFICATIONS
special_featuresINCLUDES MOUNT AND MOUNT SCREWS AND WASHERS
end_item_identificationARLEIGH BURKE CLASS DDG
valve_design_control_activity6V279
valve_type_for_which_designedPRESSURE REDUCING
NSN4820-01-416-4565
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D6891566 · 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
•
VALVE TYPE FOR WHICH DESIGNED: PRESSURE REDUCING
•
VALVE DESIGN CONTROL ACTIVITY: 6V279
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDPRESSURE REDUCING
SPECIAL FEATURESINCLUDES MOUNT AND MOUNT SCREWS AND WASHERS
VALVE DESIGN CONTROL ACTIVITY6V279
END ITEM IDENTIFICATIONARLEIGH BURKE CLASS DDG
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
D6264251 FIND 10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 D6891566?
D6891566 is a PISTON,VALVE.
What parts can replace D6891566?
There is 1 known substitute for D6891566: D6264251 FIND 10. Substitute compatibility should be verified for your specific system.
What is the NSN for D6891566?
D6891566 is cataloged in the U.S. Government catalog under NSN 4820-01-416-4565. 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.