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Technical Data Sheet
PartsTable / COMPONENT / 39953F
39953F ✓ 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 AND PLASTIC POLYAMIDE NYLON, hole_diameter: 0.400 INCHES NOMINAL IN, overall_width: 2.250 INCHES NOMINAL IN, overall_length: 3.015 INCHES NOMINAL IN, special_features: FABRIC REINFORCED, style_designator: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-868-7232, 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
39953F
NSN: 4820-00-868-7232
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialRUBBER AND PLASTIC POLYAMIDE NYLON
hole_diameter0.400 INCHES NOMINAL IN
overall_width2.250 INCHES NOMINAL IN
overall_length3.015 INCHES NOMINAL IN
special_featuresFABRIC REINFORCED
style_designatorFLAT
bolt_hole_quantity4
material_thickness0.051 INCHES NOMINAL IN
outside_corner_radius0.375 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_width2.250 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_length3.015 INCHES NOMINAL IN
NSN4820-00-868-7232
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 39953F · 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 HOLE QUANTITY: 4
•
MATERIAL THICKNESS: 0.051 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
OUTSIDE CORNER RADIUS: 0.375 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.400 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 3.015 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 2.250 INCHES NOMINAL IN
•
MATERIAL: RUBBER AND PLASTIC POLYAMIDE NYLON
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY4
MATERIAL THICKNESS0.051 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
OUTSIDE CORNER RADIUS0.375 INCHES NOMINAL IN
HOLE DIAMETER0.400 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH3.015 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH2.250 INCHES NOMINAL IN
MATERIALRUBBER AND PLASTIC POLYAMIDE NYLON
OVERALL WIDTH2.250 INCHES NOMINAL IN
OVERALL LENGTH3.015 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
SMC422657Interchangeable
interchangeable cross-reference
interchangeable
XT11482Interchangeable
interchangeable cross-reference
interchangeable
854576Interchangeable
interchangeable cross-reference
interchangeable
91A2027Interchangeable
interchangeable cross-reference
interchangeable
637899Interchangeable
interchangeable cross-reference
interchangeable
39953Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39953F?
39953F is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 39953F?
There are 6 known substitutes for 39953F: SMC422657, XT11482, 854576 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 39953F?
39953F is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-868-7232. 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