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D641-20 — PARTS KIT,BUTTERFLY VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D641-20: PARTS KIT,BUTTERFLY VALVE.

The PARTS KIT,BUTTERFLY VALVE is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: SEAT 1,59 IN. LG INTUMESCENT 1,SILICONE TUBE 3,SILICONE INJECTION TOOL 1 IN.

This part is cataloged in the U.S. Government catalog under NSN 4810-01-348-4416, 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
D641-20
NSN: 4810-01-348-4416
NIINs: 013484416, 013484417
FSC: 4810 — Valves, Powered
CAGE: 04613 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP (USA)
SPECIFICATIONS
component_quantity6
nonsupply_items_and_quantitiesSEAT 1,59 IN. LG INTUMESCENT 1,SILICONE TUBE 3,SILICONE INJECTION TOOL 1 IN
NSN4810-01-348-4416
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D641-20 · 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
•
COMPONENT QUANTITY: 6
•
NONSUPPLY ITEMS AND QUANTITIES: SEAT 1,59 IN. LG INTUMESCENT 1,SILICONE TUBE 3,SILICONE INJECTION TOOL 1 IN
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY6
NONSUPPLY ITEMS AND QUANTITIESSEAT 1,59 IN. LG INTUMESCENT 1,SILICONE TUBE 3,SILICONE INJECTION TOOL 1 IN
SUBSTITUTES & CROSS-REFERENCES 1
010-935-200-641-001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D641-20?
D641-20 is a PARTS KIT,BUTTERFLY VALVE.
What parts can replace D641-20?
There is 1 known substitute for D641-20: 010-935-200-641-001. Substitute compatibility should be verified for your specific system.
What is the NSN for D641-20?
D641-20 is cataloged in the U.S. Government catalog under NSN 4810-01-348-4416. 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.