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Technical Data Sheet
PartsTable / COMPONENT / 21202-2
21202-2 ✓ 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: FOR SZ 2.000 IN. VALVE IN, end_item_identification: SEAWOLF CLASS SSN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-414-5578, 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
21202-2
NSN: 4820-01-414-5578
FSC: 4820
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
slide_materialSTEEL
sleeve_materialSTEEL
special_featuresFOR SZ 2.000 IN. VALVE IN
end_item_identificationSEAWOLF CLASS SSN
NSN4820-01-414-5578
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21202-2 · 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
•
SLIDE MATERIAL: STEEL
•
SLEEVE MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
SLIDE MATERIALSTEEL
SLEEVE MATERIALSTEEL
SPECIAL FEATURESFOR SZ 2.000 IN. VALVE IN
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
3N177PC102Interchangeable
interchangeable cross-reference
interchangeable
120377Interchangeable
interchangeable cross-reference
interchangeable
3N135PC102Interchangeable
interchangeable cross-reference
interchangeable
000948 ITEM 12Interchangeable
interchangeable cross-reference
interchangeable
6008-2RSInterchangeable
interchangeable cross-reference
interchangeable
21202Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21202-2?
21202-2 is a SLEEVE AND SLIDE,DIRECTIONAL CON.
What parts can replace 21202-2?
There are 20 known substitutes for 21202-2: 3N177PC102, 120377, 3N135PC102 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21202-2?
21202-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-414-5578. 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