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PartsTable / COMPONENT / 21803-1002-1
21803-1002-1 ✓ 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 CAP,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, head_type: FIXED, unit_type: DOUBLE JAW, body_shape: ROUND, design_type: DRY, coolant_type: AIR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-699-4578, 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
21803-1002-1
NSN: 4810-01-699-4578
FSC: 4810
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
head_typeFIXED
unit_typeDOUBLE JAW
body_shapeROUND
design_typeDRY
coolant_typeAIR
nominal_width0.125 INCHES IN
inlet_locationCENTRALLY LOCATED IN END SECTION OF BODY
muffler_designSTRAIGHT THROUGH
nominal_length36.0 FEET FT
overall_length0.150 INCHES MAXIMUM IN
shoulder_width0.258 INCHES NOMINAL IN
NSN4810-01-699-4578
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21803-1002-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
9000-0019Interchangeable
interchangeable cross-reference
interchangeable
21803Interchangeable
interchangeable cross-reference
interchangeable
9999-0019Interchangeable
interchangeable cross-reference
interchangeable
TGJ2.536Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-406Interchangeable
interchangeable cross-reference
interchangeable
D058Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21803-1002-1?
21803-1002-1 is a CAP,VALVE.
What parts can replace 21803-1002-1?
There are 12 known substitutes for 21803-1002-1: 9000-0019, 21803, 9999-0019 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21803-1002-1?
21803-1002-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-699-4578. 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