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Technical Data Sheet
PartsTable / COMPONENT / 21353-851-1
21353-851-1 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

SLEEVE AND SLIDE,DIRECTIONAL CON. Key specifications include slide_material: STEEL, sleeve_material: STEEL, special_features: MATCHED SET,MARKED W/SERIAL NO.AT SAME END;MATL PER MIL-S-6709, end_item_identification: VALVE ASSY,DECELERATION;SARGENT CONTROLS,P/N 21353-001, valve_design_control_activity: 78062, valve_model_number_for_which_designed: 21353. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-448-7594, 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
21353-851-1
NSN: 4810-01-448-7594
FSC: 4810
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
slide_materialSTEEL
sleeve_materialSTEEL
special_featuresMATCHED SET,MARKED W/SERIAL NO.AT SAME END;MATL PER MIL-S-6709
end_item_identificationVALVE ASSY,DECELERATION;SARGENT CONTROLS,P/N 21353-001
valve_design_control_activity78062
valve_model_number_for_which_designed21353
NSN4810-01-448-7594
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21353-851-1 · 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: 21353
•
SLEEVE MATERIAL: STEEL
•
SLIDE MATERIAL: STEEL
•
VALVE DESIGN CONTROL ACTIVITY: 78062
TECHNICAL CHARACTERISTICS (FLIS)
VALVE MODEL NUMBER FOR WHICH DESIGNED21353
SLEEVE MATERIALSTEEL
SLIDE MATERIALSTEEL
VALVE DESIGN CONTROL ACTIVITY78062
SPECIAL FEATURESMATCHED SET,MARKED W/SERIAL NO.AT SAME END;MATL PER MIL-S-6709
END ITEM IDENTIFICATIONVALVE ASSY,DECELERATION;SARGENT CONTROLS,P/N 21353-001
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
21353Interchangeable
interchangeable cross-reference
interchangeable
30325Interchangeable
interchangeable cross-reference
interchangeable
190SBD3Interchangeable
interchangeable cross-reference
interchangeable
21353-1002-1Interchangeable
interchangeable cross-reference
interchangeable
21353 ITEM 10Interchangeable
interchangeable cross-reference
interchangeable
21353-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21353-851-1?
21353-851-1 is a SLEEVE AND SLIDE,DIRECTIONAL CON.
What parts can replace 21353-851-1?
There are 9 known substitutes for 21353-851-1: 21353, 30325, 190SBD3 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21353-851-1?
21353-851-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-448-7594. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026