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Technical Data Sheet
PartsTable / COMPONENT / DPM18-2
DPM18-2 ✓ 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 DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_diameter: 0.531 INCHES NOMINAL IN, outside_diameter: 9.000 INCHES NOMINAL IN, style_designator: FLAT, bolt_hole_quantity: 10, material_thickness: 0.135 INCHES NOMINAL 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 4820-00-036-3858, 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
DPM18-2
NSN: 4820-00-036-3858
FSC: 4820
CAGE: 92578 — JOHNSON CONTROLS INC CONTROL PRODUCTS DIV (USA)
SPECIFICATIONS
materialRUBBER
hole_diameter0.531 INCHES NOMINAL IN
outside_diameter9.000 INCHES NOMINAL IN
special_features8 HOLES AROUND BORE DIA 0.296 IN.DIA EQUALLY SPACED ON 4 IN.BOLT CIRCLE DIA.TWO ALIGNING HOLES 0.375 IN.DIA SPACED 8 IN.CTR TO CTR; ADDITIONAL MATERIAL: FIBER IN
style_designatorFLAT
bolt_hole_quantity10
material_thickness0.135 INCHES NOMINAL IN
bolt_circle_diameter8.000 INCHES NOMINAL IN
center_hole_diameter3.250 INCHES NOMINAL IN
NSN4820-00-036-3858
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DPM18-2 · 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
•
CENTER HOLE DIAMETER: 3.250 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 8.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.135 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 10
•
STYLE DESIGNATOR: FLAT
•
MATERIAL: RUBBER
•
OUTSIDE DIAMETER: 9.000 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.531 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER3.250 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER8.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.135 INCHES NOMINAL IN
BOLT HOLE QUANTITY10
STYLE DESIGNATORFLAT
MATERIALRUBBER
OUTSIDE DIAMETER9.000 INCHES NOMINAL IN
HOLE DIAMETER0.531 INCHES NOMINAL IN
SPECIAL FEATURES8 HOLES AROUND BORE DIA 0.296 IN.DIA EQUALLY SPACED ON 4 IN.BOLT CIRCLE DIA.TWO ALIGNING HOLES 0.375 IN.DIA SPACED 8 IN.CTR TO CTR; ADDITIONAL MATERIAL: FIBER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
A-2246Interchangeable
interchangeable cross-reference
interchangeable
23557Interchangeable
interchangeable cross-reference
interchangeable
M83421/01-0243MInterchangeable
interchangeable cross-reference
interchangeable
MIL-C-83421/1Interchangeable
interchangeable cross-reference
interchangeable
AAU-31/A-2Interchangeable
interchangeable cross-reference
interchangeable
10450-31875Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DPM18-2?
DPM18-2 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace DPM18-2?
There are 19 known substitutes for DPM18-2: A-2246, 23557, M83421/01-0243M and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DPM18-2?
DPM18-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-036-3858. 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