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21219-850-1 — SLEEVE AND SLIDE,DIRECTIONAL CON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21219-850-1: SLEEVE AND SLIDE,DIRECTIONAL CON.

SLEEVE AND SLIDE,DIRECTIONAL CON. Key specifications include slide_material: STEEL, sleeve_material: STEEL, special_features: SLIDE/SLEEVE MATCHED SET IS MARKED WITH SERIAL NO AT SAME END TO AVOID IMPROPER ASSEMBLY, end_item_identification: NAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN, valve_model_number_for_which_designed: SIZE 3. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-418-8904, 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
21219-850-1
NSN: 4820-01-418-8904
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
slide_materialSTEEL
sleeve_materialSTEEL
special_featuresSLIDE/SLEEVE MATCHED SET IS MARKED WITH SERIAL NO AT SAME END TO AVOID IMPROPER ASSEMBLY
end_item_identificationNAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN
valve_model_number_for_which_designedSIZE 3
NSN4820-01-418-8904
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21219-850-1 · 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: SIZE 3
•
SLIDE MATERIAL: STEEL
•
SLEEVE MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
VALVE MODEL NUMBER FOR WHICH DESIGNEDSIZE 3
SLIDE MATERIALSTEEL
SPECIAL FEATURESSLIDE/SLEEVE MATCHED SET IS MARKED WITH SERIAL NO AT SAME END TO AVOID IMPROPER ASSEMBLY
SLEEVE MATERIALSTEEL
END ITEM IDENTIFICATIONNAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN
SUBSTITUTES & CROSS-REFERENCES 2
21219Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
21219 FIND 6Reference 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 21219-850-1?
21219-850-1 is a SLEEVE AND SLIDE,DIRECTIONAL CON.
What parts can replace 21219-850-1?
There are 2 known substitutes for 21219-850-1: 21219, 21219 FIND 6. Substitute compatibility should be verified for your specific system.
What is the NSN for 21219-850-1?
21219-850-1 is cataloged in the U.S. Government catalog under NSN 4820-01-418-8904. 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.