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Technical Data Sheet
PartsTable / COMPONENT / 21261-6
21261-6 ✓ 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

The TERMINAL,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, pressure_rating: 3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, style_designator: POPPET, 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 4820-01-417-2772, 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
21261-6
NSN: 4820-01-417-2772
FSC: 4820
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
pressure_rating3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
style_designatorPOPPET
end_item_identificationSEAWOLF CLASS SSN
NSN4820-01-417-2772
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21261-6 · 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
•
STYLE DESIGNATOR: POPPET
•
PRESSURE RATING: 3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORPOPPET
PRESSURE RATING3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MATERIALSTEEL CORROSION RESISTING
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
31730Interchangeable
interchangeable cross-reference
interchangeable
31730-1Interchangeable
interchangeable cross-reference
interchangeable
31762-120V60CInterchangeable
interchangeable cross-reference
interchangeable
FPR42UN20Interchangeable
interchangeable cross-reference
interchangeable
31762Interchangeable
interchangeable cross-reference
interchangeable
E13789Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21261-6?
21261-6 is a TERMINAL,QUICK DISCONNECT.
What parts can replace 21261-6?
There are 16 known substitutes for 21261-6: 31730, 31730-1, 31762-120V60C and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21261-6?
21261-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-417-2772. 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