PartsTable
Technical Data Sheet
N2638 ✓ 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 BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include filter: NOT INCLUDEDNOT INCLUDED, material: BRASS SEATBRASS SEAT, body_style: STRAIGHT THRUSTRAIGHT THRU, temp_rating: 120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF, bore_diameter: 25.0 MILLIMETERS NOMINAL MM, overall_width: 17.0 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-640-6213, 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
N2638
NSN: 4820-00-640-6213
FSC: 4820
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
filterNOT INCLUDEDNOT INCLUDED
materialBRASS SEATBRASS SEAT
body_styleSTRAIGHT THRUSTRAIGHT THRU
temp_rating120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF
bore_diameter25.0 MILLIMETERS NOMINAL MM
overall_width17.0 MILLIMETERS NOMINAL MM
regulation_typeAUTOMATIC SINGLE STAGEAUTOMATIC SINGLE STAGE
flow_control_deviceDISKDISK
valve_loading_methodSPRINGSPRING
outlet_pressure_range10.0 TO 125.0 CAMERA MOUNT
end_connection_quantity22
end_item_identificationHIGH PRESSURE COMPRESSOR BLOCKS, MODEL K180
NSN4820-00-640-6213
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: N2638 · 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
TEMP RATING: 120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/8-18 NPT FIRST END3/8-18 NPT FIRST END
VALVE LOADING METHOD: SPRINGSPRING
MATERIAL: COPPER ALLOY STEMCOPPER ALLOY STEM
BODY STYLE: STRAIGHT THRUSTRAIGHT THRU
FIRST END CONNECTION TYPE: THREADED INTERNAL PIPETHREADED INTERNAL PIPE
MAXIMUM INLET PRESSURE RATING: ERR-060
SECOND END RELATIONSHIP WITH FIRST END: IDENTICALIDENTICAL
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/8-18 NPT FIRST END3/8-18 NPT FIRST END
VALVE LOADING METHODSPRINGSPRING
MATERIALCOPPER ALLOY STEMCOPPER ALLOY STEM
BODY STYLESTRAIGHT THRUSTRAIGHT THRU
FIRST END CONNECTION TYPETHREADED INTERNAL PIPETHREADED INTERNAL PIPE
MAXIMUM INLET PRESSURE RATINGERR-060
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICALIDENTICAL
REGULATION TYPEAUTOMATIC SINGLE STAGEAUTOMATIC SINGLE STAGE
FLOW CONTROL DEVICEDISKDISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2638Interchangeable
interchangeable cross-reference
interchangeable
3373654Interchangeable
interchangeable cross-reference
interchangeable
26Interchangeable
interchangeable cross-reference
interchangeable
N0 26Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
AN3053-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N2638?
N2638 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace N2638?
There are 15 known substitutes for N2638: 2638, 3373654, 26 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N2638?
N2638 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-640-6213. This indicates validated use in U.S. government and defense supply chains.
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