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PartsTable / COMPONENT / 26-1/2IN-100PSI
26-1/2IN-100PSI ✓ 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 26-1/2IN-100PSI is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-421-9406, 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
26-1/2IN-100PSI
NSN: 4820-00-421-9406
FSC: 4820
CAGE: 93641 — AQUATROL INC (USA)
SPECIFICATIONS
Part Number26-1/2IN-100PSI
NSN4820-00-421-9406
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 26-1/2IN-100PSI · 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
•
CONNECTION STYLE: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END
•
BONNET TYPE: INSIDE SPRINGINSIDE SPRING
•
MEDIA FOR WHICH DESIGNED: GAS, NATURAL SECOND RESPONSE
•
THREAD SERIES DESIGNATOR: NPT SECOND ENDNPT FIRST END
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END0.750 INCHES FIRST END IN
•
FEATURES PROVIDED: VALVE STEM LOCK SHIELDVALVE STEM LOCK SHIELD
•
STYLE DESIGNATOR: ANGLE
•
BONNET ATTACHMENT METHOD: THREADEDTHREADED
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END
BONNET TYPEINSIDE SPRINGINSIDE SPRING
MEDIA FOR WHICH DESIGNEDGAS, NATURAL SECOND RESPONSE
THREAD SERIES DESIGNATORNPT SECOND ENDNPT FIRST END
NOMINAL THREAD SIZE0.750 INCHES FIRST END0.750 INCHES FIRST END IN
FEATURES PROVIDEDVALVE STEM LOCK SHIELDVALVE STEM LOCK SHIELD
STYLE DESIGNATORANGLE
BONNET ATTACHMENT METHODTHREADEDTHREADED
CONNECTION TYPETHREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
21146Interchangeable
interchangeable cross-reference
interchangeable
A2308-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 26-1/2IN-100PSI?
26-1/2IN-100PSI is a 26-1/2IN-100PSI.
What parts can replace 26-1/2IN-100PSI?
There are 2 known substitutes for 26-1/2IN-100PSI: 21146, A2308-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 26-1/2IN-100PSI?
26-1/2IN-100PSI is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-421-9406. 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