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21811-001 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21811-001: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include material: PLASTIC ENCLOSURE, scale_type: ETCHED STEMETCHED STEM, body_length: 0.750 INCHES NOMINAL IN, design_type: MAXIMUMMAXIMUM, thread_class: 2A A, body_diameter: 0.187 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-472-8790, 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
21811-001
NSN: 4810-01-472-8790
FSC: 4810 — Valves, Powered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialPLASTIC ENCLOSURE
scale_typeETCHED STEMETCHED STEM
body_length0.750 INCHES NOMINAL IN
design_typeMAXIMUMMAXIMUM
thread_class2A A
body_diameter0.187 INCHES NOMINAL IN
overall_width0.305 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeFULLY INCLOSED
overall_height0.105 INCHES MAXIMUM IN
overall_length0.435 INCHES MAXIMUM IN
NSN4810-01-472-8790
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21811-001 · 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
SUBSTITUTES & CROSS-REFERENCES 1
21811Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 21811-001?
21811-001 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 21811-001?
There is 1 known substitute for 21811-001: 21811. Substitute compatibility should be verified for your specific system.
What is the NSN for 21811-001?
21811-001 is cataloged in the U.S. Government catalog under NSN 4810-01-472-8790. 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.