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Technical Data Sheet
PartsTable / COMPONENT / 20155-1.25IN
20155-1.25IN ✓ 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 20155-1.25IN 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 4820-01-271-3590, 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
20155-1.25IN
NSN: 4820-01-271-3590
FSC: 4820
CAGE: 95368 — AERCO INTERNATIONAL, INC. DBA AERCO INTERNATIONAL INC (USA)
SPECIFICATIONS
Part Number20155-1.25IN
NSN4820-01-271-3590
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20155-1.25IN · 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
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
•
FLOW CONTROL DEVICE: PLUG
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
TEMP RATING: 200.0 FAHRENHEIT NOMINAL DEGF
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
FLOW CONTROL DEVICEPLUG
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIALCOPPER ALLOY BODY
TEMP RATING200.0 FAHRENHEIT NOMINAL DEGF
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
16217Interchangeable
interchangeable cross-reference
interchangeable
20155Interchangeable
interchangeable cross-reference
interchangeable
20155PC45Interchangeable
interchangeable cross-reference
interchangeable
10014-1Interchangeable
interchangeable cross-reference
interchangeable
20155 PIECE 10B 1INInterchangeable
interchangeable cross-reference
interchangeable
303-67Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20155-1.25IN?
20155-1.25IN is a 20155-1.25IN.
What parts can replace 20155-1.25IN?
There are 16 known substitutes for 20155-1.25IN: 16217, 20155, 20155PC45 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20155-1.25IN?
20155-1.25IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-271-3590. 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