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Technical Data Sheet
PartsTable / COMPONENT / 2921P
2921P ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, seat_angle: 45.0 DEGREES NOMINAL, overall_height: 2.953 INCHES NOMINAL IN, shank_diameter: 2.125 INCHES NOMINAL IN, outside_diameter: 2.500 INCHES NOMINAL IN, under_flange_height: 0.609 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-398-8830, 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
2921P
NSN: 4820-00-398-8830
FSC: 4820
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialCOPPER ALLOY
seat_angle45.0 DEGREES NOMINAL
overall_height2.953 INCHES NOMINAL IN
shank_diameter2.125 INCHES NOMINAL IN
outside_diameter2.500 INCHES NOMINAL IN
under_flange_height0.609 INCHES NOMINAL IN
flange_seat_to_disk_end_height2.125 INCHES NOMINAL IN
NSN4820-00-398-8830
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2921P · 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: COPPER ALLOY
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
FLANGE SEAT TO DISK END HEIGHT: 2.125 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.609 INCHES NOMINAL IN
•
SHANK DIAMETER: 2.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
SEAT ANGLE45.0 DEGREES NOMINAL
FLANGE SEAT TO DISK END HEIGHT2.125 INCHES NOMINAL IN
OVERALL HEIGHT2.953 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.609 INCHES NOMINAL IN
SHANK DIAMETER2.125 INCHES NOMINAL IN
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
G64S100P1Y3Interchangeable
interchangeable cross-reference
interchangeable
2394350G1Interchangeable
interchangeable cross-reference
interchangeable
252957Interchangeable
interchangeable cross-reference
interchangeable
51848Interchangeable
interchangeable cross-reference
interchangeable
JD7231Interchangeable
interchangeable cross-reference
interchangeable
120 1-1/16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2921P?
2921P is a DISK,VALVE.
What parts can replace 2921P?
There are 19 known substitutes for 2921P: G64S100P1Y3, 2394350G1, 252957 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2921P?
2921P is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-398-8830. 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