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451420 — DISK,VALVE

✓ Government record, cited
Intellinet · GATE VALVE
PRODUCT OVERVIEW

451420: DISK,VALVE.

- Copper-Clad Aluminum (CCA) - Impedance Matched - Strain Relief - Standards Tested. Key specifications include material: COPPER ALLOY, seat_angle: 45.0 DEGREES NOMINAL, overall_height: 1.885 INCHES NOMINAL IN, shank_diameter: 0.841 INCHES NOMINAL IN, flange_diameter: 2.246 INCHES NOMINAL IN, style_designator: POPPET. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-127-2567, 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
451420
NSN: 4820-01-127-2567
FSC: 4820 — Valves, Nonpowered
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialCOPPER ALLOY
seat_angle45.0 DEGREES NOMINAL
overall_height1.885 INCHES NOMINAL IN
shank_diameter0.841 INCHES NOMINAL IN
flange_diameter2.246 INCHES NOMINAL IN
style_designatorPOPPET
NSN4820-01-127-2567
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 451420 · Intellinet ⚠ 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
•
SHANK DIAMETER: 0.841 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.246 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.841 INCHES NOMINAL IN
FLANGE DIAMETER2.246 INCHES NOMINAL IN
OVERALL HEIGHT1.885 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
SEAT ANGLE45.0 DEGREES NOMINAL
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
E3497Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
E3497 PIECE 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 451420?
451420 is a DISK,VALVE manufactured by Intellinet.
What parts can replace 451420?
There are 2 known substitutes for 451420: E3497, E3497 PIECE 9. Substitute compatibility should be verified for your specific system.
What is the NSN for 451420?
451420 is cataloged in the U.S. Government catalog under NSN 4820-01-127-2567. 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.