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D641-10 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D641-10: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_item_identification: 4820-01-310-1125; BUTTERFLY VALVE FOR CVN NUCLEAR REACTOR BOUNDARY AREA, valve_size_for_which_designed: 10.000 INCHES IN, valve_type_for_which_designed: BUTTERFLY. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-533-4349, 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
D641-10
NSN: 4820-01-533-4349
FSC: 4820 — Valves, Nonpowered
CAGE: 04613 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP (USA)
SPECIFICATIONS
materialNICKEL ALLOY
end_item_identification4820-01-310-1125; BUTTERFLY VALVE FOR CVN NUCLEAR REACTOR BOUNDARY AREA
valve_size_for_which_designed10.000 INCHES IN
valve_type_for_which_designedBUTTERFLY
NSN4820-01-533-4349
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D641-10 · 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
•
VALVE TYPE FOR WHICH DESIGNED: BUTTERFLY
•
VALVE SIZE FOR WHICH DESIGNED: 10.000 INCHES IN
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDBUTTERFLY
VALVE SIZE FOR WHICH DESIGNED10.000 INCHES IN
END ITEM IDENTIFICATION4820-01-310-1125; BUTTERFLY VALVE FOR CVN NUCLEAR REACTOR BOUNDARY AREA
MATERIALNICKEL ALLOY
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
119-205-040-661-000Reference document
Same NSN cross-reference
Reference document — Secondary reference
D641-10ITEM3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D641-10?
D641-10 is a STEM,FLUID VALVE.
What parts can replace D641-10?
There are 2 known substitutes for D641-10: 119-205-040-661-000, D641-10ITEM3. Substitute compatibility should be verified for your specific system.
What is the NSN for D641-10?
D641-10 is cataloged in the U.S. Government catalog under NSN 4820-01-533-4349. 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.