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PartsTable / COMPONENT / MODEL NO. 81M-3 3IN
MODEL NO. 81M-3 3IN ✓ 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 MODEL NO. 81M-3 3IN 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 4820-01-204-5223, 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
MODEL NO. 81M-3 3IN
NSN: 4820-01-204-5223
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
Part NumberMODEL NO. 81M-3 3IN
NSN4820-01-204-5223
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MODEL NO. 81M-3 3IN · 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
•
BOLT CIRCLE NOMINAL DIAMETER: 5.500 INCHES FIRST END IN
•
FLOW CONTROL DEVICE: DISK
•
NOMINAL THICKNESS: 0.938 INCHES FIRST END IN
•
FLANGE SHAPE: ROUND WITH HOLES FIRST END
•
VALVE OPERATION METHOD: AUTOMATIC
•
VALVE SIZE: 3.000 INCHES IN
•
CONNECTION TYPE: FLANGE FIRST END
•
NOMINAL OUTSIDE DIAMETER: 6.625 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE NOMINAL DIAMETER5.500 INCHES FIRST END IN
FLOW CONTROL DEVICEDISK
NOMINAL THICKNESS0.938 INCHES FIRST END IN
FLANGE SHAPEROUND WITH HOLES FIRST END
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE3.000 INCHES IN
CONNECTION TYPEFLANGE FIRST END
NOMINAL OUTSIDE DIAMETER6.625 INCHES FIRST END IN
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
105004Interchangeable
interchangeable cross-reference
interchangeable
10315Interchangeable
interchangeable cross-reference
interchangeable
10315AInterchangeable
interchangeable cross-reference
interchangeable
2154Interchangeable
interchangeable cross-reference
interchangeable
141-32-00-408Interchangeable
interchangeable cross-reference
interchangeable
8367807Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MODEL NO. 81M-3 3IN?
MODEL NO. 81M-3 3IN is a MODEL NO. 81M-3 3IN.
What parts can replace MODEL NO. 81M-3 3IN?
There are 23 known substitutes for MODEL NO. 81M-3 3IN: 105004, 10315, 10315A and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MODEL NO. 81M-3 3IN?
MODEL NO. 81M-3 3IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-204-5223. 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