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81M-3EP 1.25IN 82864 — Technical Data Sheet

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— · 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,CHECK is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND RUBBER SYNTHETIC OVERALL, temp_rating: 150.0 CELSIUS DEGC, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 2.249 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 0.812 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-195-3767, 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
81M-3EP 1.25IN 82864
NSN: 4820-01-195-3767
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER SYNTHETIC OVERALL
temp_rating150.0 CELSIUS DEGC
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.249 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter0.812 INCHES NOMINAL IN
bolt_hole_quantity2
bolt_circle_diameter1.625 INCHES NOMINAL IN
fsc_application_dataENGINE,AIRCRAFT,RECIPROCATING
outside_corner_radius0.312 INCHES NOMINAL IN
cross-sectional_thickness0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN4820-01-195-3767
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81M-3EP 1.25IN 82864 · 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 10
H-B-771 TY2CL2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
H-B-771InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
82864InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
81491InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
X01M-3EP 1.25IN 81490InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
81491DInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81M-3EP 1.25IN 82864?
81M-3EP 1.25IN 82864 is a VALVE,CHECK.
What parts can replace 81M-3EP 1.25IN 82864?
There are 10 known substitutes for 81M-3EP 1.25IN 82864: H-B-771 TY2CL2, H-B-771, 82864 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81M-3EP 1.25IN 82864?
81M-3EP 1.25IN 82864 is cataloged in the Federal Logistics Information System under NSN 4820-01-195-3767. 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: October 2026