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9999-001 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

9999-001: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 STEM, bonnet_type: OUTSIDE SCREW-YOKE, connection_type: BUTT WELD PIPE ALL ENDS, connection_style: BEVELED (PIPE) ALL ENDS, style_designator: STRAIGHT THRU, operating_pressure: 88.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-285-2923, 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
9999-001
NSN: 4820-01-285-2923
NIINs: 012852923, 012864628, 013371152, 014144132, 014148061, 014148066, 014332630, 014492743, 014493631, 014668343, 014688780, 014693054, 014693219, 014817814, 015424279
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 410 STEM
bonnet_typeOUTSIDE SCREW-YOKE
connection_typeBUTT WELD PIPE ALL ENDS
connection_styleBEVELED (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
operating_pressure88.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp775.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
end_item_identificationNIMITZ CLASS CVN
bonnet_attachment_methodBOLTED
media_for_which_designedOIL SINGLE RESPONSE
NSN4820-01-285-2923
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9999-001 · 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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MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSTELLITE FACED; INCLUDES FLAT DISK
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9999-001?
9999-001 is a SEAT,VALVE.
What is the NSN for 9999-001?
9999-001 is cataloged in the U.S. Government catalog under NSN 4820-01-285-2923. 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.