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801-6404994-AY98 — LOCKING DEVICE,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

801-6404994-AY98: LOCKING DEVICE,VALVE.

The LOCKING DEVICE,VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: SEAWOLF CLASS SSN, general_characteristics_item_description: NICKEL ALLOY, QQ-N-281, CLASS A, FORM 4, COND HF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-418-7474, 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
801-6404994-AY98
NSN: 4820-01-418-7474
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identificationSEAWOLF CLASS SSN
general_characteristics_item_descriptionNICKEL ALLOY, QQ-N-281, CLASS A, FORM 4, COND HF
NSN4820-01-418-7474
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 801-6404994-AY98 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: NICKEL ALLOY, QQ-N-281, CLASS A, FORM 4, COND HF
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNICKEL ALLOY, QQ-N-281, CLASS A, FORM 4, COND HF
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
SUBSTITUTES & CROSS-REFERENCES 4
801-6404994 ASSY 98Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6404994Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
DF330811 ASSY-98Reference document
Same NSN cross-reference
Reference document — Secondary reference
801-6404994 ASSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 801-6404994-AY98?
801-6404994-AY98 is a LOCKING DEVICE,VALVE.
What parts can replace 801-6404994-AY98?
There are 4 known substitutes for 801-6404994-AY98: 801-6404994 ASSY 98, 6404994, DF330811 ASSY-98 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 801-6404994-AY98?
801-6404994-AY98 is cataloged in the U.S. Government catalog under NSN 4820-01-418-7474. This indicates validated use in U.S. government and defense supply chains.
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