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Technical Data Sheet
PartsTable / COMPONENT / 20269B51M
20269B51M ✓ 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

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: GLASS FIBER FILTERING MEDIUM, end_style: MACHINE LOOP SECOND END, body_width: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, bore_shape: STRAIGHT, body_height: 0.130 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, body_length: 0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-8853, 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
20269B51M
NSN: 4820-01-203-8853
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialGLASS FIBER FILTERING MEDIUM
end_styleMACHINE LOOP SECOND END
body_width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
body_height0.130 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
design_typeLIMITED
bore_diameter0.7500 INCHES MINIMUM AND 0.7540 INCHES MAXIMUM IN
coil_quantity23
overall_width13.000 INCHES NOMINAL IN
body_thickness1.000 INCHES NOMINAL IN
load_directionRADIAL
NSN4820-01-203-8853
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20269B51M · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
20268FN36Interchangeable
interchangeable cross-reference
interchangeable
06689232222Interchangeable
interchangeable cross-reference
interchangeable
A6689.232.222/20269Interchangeable
interchangeable cross-reference
interchangeable
20269Interchangeable
interchangeable cross-reference
interchangeable
16188Interchangeable
interchangeable cross-reference
interchangeable
MM54C175JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20269B51M?
20269B51M is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 20269B51M?
There are 17 known substitutes for 20269B51M: 20268FN36, 06689232222, A6689.232.222/20269 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20269B51M?
20269B51M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-8853. 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