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20437-1040 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20437-1040: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 29.0 DEGREES NOMINAL, overall_height: 2.476 INCHES NOMINAL IN, shank_diameter: 0.752 INCHES NOMINAL IN, outside_diameter: 0.872 INCHES NOMINAL IN, special_features: 0.638 IN. DIA PARTIAL BORE FROM FLANGE END 2.100 IN.

DEEP IN. This part is cataloged in the U.S. Government catalog under NSN 4820-01-061-0672, 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
20437-1040
NSN: 4820-01-061-0672
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL
seat_angle29.0 DEGREES NOMINAL
overall_height2.476 INCHES NOMINAL IN
shank_diameter0.752 INCHES NOMINAL IN
outside_diameter0.872 INCHES NOMINAL IN
special_features0.638 IN. DIA PARTIAL BORE FROM FLANGE END 2.100 IN. DEEP IN
style_designatorPOPPET
under_flange_height0.243 INCHES NOMINAL IN
flange_seat_to_disk_end_height2.233 INCHES NOMINAL IN
NSN4820-01-061-0672
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20437-1040 · 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
•
SHANK DIAMETER: 0.752 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 2.233 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.872 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
•
SEAT ANGLE: 29.0 DEGREES NOMINAL
•
UNDER FLANGE HEIGHT: 0.243 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.752 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT2.233 INCHES NOMINAL IN
OVERALL HEIGHT2.476 INCHES NOMINAL IN
OUTSIDE DIAMETER0.872 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
SEAT ANGLE29.0 DEGREES NOMINAL
SPECIAL FEATURES0.638 IN. DIA PARTIAL BORE FROM FLANGE END 2.100 IN. DEEP IN
UNDER FLANGE HEIGHT0.243 INCHES NOMINAL IN
MATERIALSTEEL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20437-1040?
20437-1040 is a DISK,VALVE.
What is the NSN for 20437-1040?
20437-1040 is cataloged in the U.S. Government catalog under NSN 4820-01-061-0672. 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.