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Technical Data Sheet
PartsTable / COMPONENT / 9999-001 REV.H 4IN
9999-001 REV.H 4IN ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The 9999-001 REV.H 4IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-433-2628, 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 REV.H 4IN
NSN: 4820-01-433-2628
FSC: 4820
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
Part Number9999-001 REV.H 4IN
NSN4820-01-433-2628
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9999-001 REV.H 4IN · 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
•
MATERIAL: STEEL UNS K02501 STEM
•
VALVE SIZE: 4.000 INCHES IN
•
BOLT HOLE NOMINAL DIAMETER: 0.625 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER: 9.000 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: OIL SINGLE RESPONSE
•
RAISED FACE NOMINAL DIAMETER: 6.188 INCHES IN
•
BOLT CIRCLE NOMINAL DIAMETER: 7.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSUPPLY CLASS AOE
MATERIALSTEEL UNS K02501 STEM
VALVE SIZE4.000 INCHES IN
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER9.000 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDOIL SINGLE RESPONSE
RAISED FACE NOMINAL DIAMETER6.188 INCHES IN
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES ALL ENDS IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALGRAPHITE PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MIL-DTL-22052Interchangeable
interchangeable cross-reference
interchangeable
MIL-V-22052DInterchangeable
interchangeable cross-reference
interchangeable
8347-2 1/2 IN.Interchangeable
interchangeable cross-reference
interchangeable
MILV22052Interchangeable
interchangeable cross-reference
interchangeable
C9877-7Interchangeable
interchangeable cross-reference
interchangeable
78306-B12-27PS2TS-SC40-882056343Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9999-001 REV.H 4IN?
9999-001 REV.H 4IN is a 9999-001 REV.H 4IN.
What parts can replace 9999-001 REV.H 4IN?
There are 15 known substitutes for 9999-001 REV.H 4IN: MIL-DTL-22052, MIL-V-22052D, 8347-2 1/2 IN. and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9999-001 REV.H 4IN?
9999-001 REV.H 4IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-433-2628. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026