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21333-850-1 — SLEEVE AND SLIDE,DIRECTIONAL CON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21333-850-1: SLEEVE AND SLIDE,DIRECTIONAL CON.

SLEEVE AND SLIDE,DIRECTIONAL CON. Key specifications include slide_material: STEEL CORROSION RESISTING, sleeve_material: STEEL CORROSION RESISTING, end_item_identification: SEAWOLF CLASS SSN, valve_design_control_activity: 78062, valve_model_number_for_which_designed: 21333. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-419-0574, 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
21333-850-1
NSN: 4820-01-419-0574
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
slide_materialSTEEL CORROSION RESISTING
sleeve_materialSTEEL CORROSION RESISTING
end_item_identificationSEAWOLF CLASS SSN
valve_design_control_activity78062
valve_model_number_for_which_designed21333
NSN4820-01-419-0574
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21333-850-1 · 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 MODEL NUMBER FOR WHICH DESIGNED: 21333
•
SLIDE MATERIAL: STEEL CORROSION RESISTING
•
SLEEVE MATERIAL: STEEL CORROSION RESISTING
•
VALVE DESIGN CONTROL ACTIVITY: 78062
TECHNICAL CHARACTERISTICS
VALVE MODEL NUMBER FOR WHICH DESIGNED21333
SLIDE MATERIALSTEEL CORROSION RESISTING
SLEEVE MATERIALSTEEL CORROSION RESISTING
VALVE DESIGN CONTROL ACTIVITY78062
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
SUBSTITUTES & CROSS-REFERENCES 3
21333-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
21333Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
21333-850Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 21333-850-1?
21333-850-1 is a SLEEVE AND SLIDE,DIRECTIONAL CON.
What parts can replace 21333-850-1?
There are 3 known substitutes for 21333-850-1: 21333-3, 21333, 21333-850. Substitute compatibility should be verified for your specific system.
What is the NSN for 21333-850-1?
21333-850-1 is cataloged in the U.S. Government catalog under NSN 4820-01-419-0574. 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.