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Technical Data Sheet
PartsTable / COMPONENT / E-1-2-R
E-1-2-R ✓ 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 VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include shape: CYLINDRICAL, diameter: 0.204 INCHES NOMINAL IN, material: COPPER ALLOY, fuel_type: ACETYLENE, bore_shape: STRAIGHT, bore_diameter: 12.00 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 4820-00-276-7875, 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
E-1-2-R
NSN: 4820-00-276-7875
FSC: 4820
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
shapeCYLINDRICAL
diameter0.204 INCHES NOMINAL IN
materialCOPPER ALLOY
fuel_typeACETYLENE
bore_shapeSTRAIGHT
bore_diameter12.00 MILLIMETERS NOMINAL MM
overall_width0.500 INCHES NOMINAL IN
terminal_typeFLAT CONTACT BOTTOM
load_directionRADIAL
overall_length5.500 INCHES NOMINAL IN
surface_finishGROUND
size_designator12
NSN4820-00-276-7875
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: E-1-2-R · 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 6
12-1AInterchangeable
interchangeable cross-reference
interchangeable
122358-12Interchangeable
interchangeable cross-reference
interchangeable
E12Interchangeable
interchangeable cross-reference
interchangeable
10186Interchangeable
interchangeable cross-reference
interchangeable
MILB18Interchangeable
interchangeable cross-reference
interchangeable
BA-1328/UInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E-1-2-R?
E-1-2-R is a VALVE,REGULATING,TEMPERATURE.
What parts can replace E-1-2-R?
There are 6 known substitutes for E-1-2-R: 12-1A, 122358-12, E12 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E-1-2-R?
E-1-2-R is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-276-7875. 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