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801-6404977-AY99 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

801-6404977-AY99: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: TITANIUM FLOW CONTROL DEVICE, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: CROSS FLANGED ENDS, flange_face_design: PLAIN ALL ENDS, face_to_face_distance: 19.163 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-347-4366, 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
801-6404977-AY99
NSN: 4820-01-347-4366
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialTITANIUM FLOW CONTROL DEVICE
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorCROSS FLANGED ENDS
flange_face_designPLAIN ALL ENDS
face_to_face_distance19.163 INCHES IN
maximum_operating_temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationVALVE BALL 3 WAY 5.00X4.00X5.00NPS
media_for_which_designedWATER, SALT SINGLE RESPONSE
first_connection_face_to_centerline_distance9.750 INCHES IN
NSN4820-01-347-4366
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 801-6404977-AY99 · 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
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: CROSS FLANGED ENDS
•
MAXIMUM OPERATING TEMP: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
FACE TO FACE DISTANCE: 19.163 INCHES IN
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORCROSS FLANGED ENDS
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
FACE TO FACE DISTANCE19.163 INCHES IN
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
END ITEM IDENTIFICATIONVALVE BALL 3 WAY 5.00X4.00X5.00NPS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE9.750 INCHES IN
MATERIALCOPPER ALLOY BODY
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 1
211046634Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 801-6404977-AY99?
801-6404977-AY99 is a VALVE,BALL.
What parts can replace 801-6404977-AY99?
There is 1 known substitute for 801-6404977-AY99: 211046634. Substitute compatibility should be verified for your specific system.
What is the NSN for 801-6404977-AY99?
801-6404977-AY99 is cataloged in the U.S. Government catalog under NSN 4820-01-347-4366. 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.