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20321-1040 — CAP,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20321-1040: CAP,VALVE.

The CAP,VALVE is a the manufacturer industrial component. Key specifications include width: 1.885 INCHES NOMINAL IN, height: 1.665 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, overall_length: 2.645 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-104-1679, 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
20321-1040
NSN: 4820-01-104-1679
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
width1.885 INCHES NOMINAL IN
height1.665 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
overall_length2.645 INCHES NOMINAL IN
NSN4820-01-104-1679
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20321-1040 · 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
•
HEIGHT: 1.665 INCHES NOMINAL IN
•
WIDTH: 1.885 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
OVERALL LENGTH2.645 INCHES NOMINAL IN
HEIGHT1.665 INCHES NOMINAL IN
WIDTH1.885 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 2
20321-001Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
20321-001 FIND 8Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 20321-1040?
20321-1040 is a CAP,VALVE.
What parts can replace 20321-1040?
There are 2 known substitutes for 20321-1040: 20321-001, 20321-001 FIND 8. Substitute compatibility should be verified for your specific system.
What is the NSN for 20321-1040?
20321-1040 is cataloged in the U.S. Government catalog under NSN 4820-01-104-1679. 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.