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FV88-636-1 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

FV88-636-1: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER FABRIC REINFORCED, hole_diameter: 0.340 INCHES NOMINAL IN, outside_diameter: 3.285 INCHES NOMINAL IN, special_features: PLASTIC SEAT IN CENTER OF DIAPHRAGM, style_designator: FLAT, material_thickness: 0.035 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-904-8991, 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
FV88-636-1
NSN: 4810-00-904-8991
FSC: 4810 — Valves, Powered
CAGE: 04845 — AUTOMATIC SWITCH COMPANY DBA ASCO (USA)
SPECIFICATIONS
materialRUBBER FABRIC REINFORCED
hole_diameter0.340 INCHES NOMINAL IN
outside_diameter3.285 INCHES NOMINAL IN
special_featuresPLASTIC SEAT IN CENTER OF DIAPHRAGM
style_designatorFLAT
bolt_hole_quantity4
material_thickness0.035 INCHES NOMINAL IN
bolt_circle_diameter3.450 INCHES NOMINAL IN
outside_corner_radius0.406 INCHES NOMINAL IN
NSN4810-00-904-8991
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: FV88-636-1 · 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
•
OUTSIDE DIAMETER: 3.285 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.035 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
BOLT CIRCLE DIAMETER: 3.450 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.406 INCHES NOMINAL IN
•
MATERIAL: RUBBER FABRIC REINFORCED
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER3.285 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.035 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER3.450 INCHES NOMINAL IN
SPECIAL FEATURESPLASTIC SEAT IN CENTER OF DIAPHRAGM
OUTSIDE CORNER RADIUS0.406 INCHES NOMINAL IN
MATERIALRUBBER FABRIC REINFORCED
HOLE DIAMETER0.340 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
FV886-36-25Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
88636-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FV88-636-1?
FV88-636-1 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace FV88-636-1?
There are 2 known substitutes for FV88-636-1: FV886-36-25, 88636-1. Substitute compatibility should be verified for your specific system.
What is the NSN for FV88-636-1?
FV88-636-1 is cataloged in the U.S. Government catalog under NSN 4810-00-904-8991. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.