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Technical Data Sheet
PartsTable / COMPONENT / 21327-003
21327-003 ✓ 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

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include body_material: ALUMINUM ALLOY 6061, end_item_identification: NAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN, valve_discharge_flow_rate: 30.0 GALLONS PER MINUTE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-418-8896, 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
21327-003
NSN: 4820-01-418-8896
FSC: 4820
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
body_materialALUMINUM ALLOY 6061
spool_quantity3
end_item_identificationNAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN
valve_discharge_flow_rate30.0 GALLONS PER MINUTE
NSN4820-01-418-8896
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21327-003 · 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
•
BODY MATERIAL: ALUMINUM ALLOY 6061
•
SPOOL QUANTITY: 3
•
VALVE DISCHARGE FLOW RATE: 30.0 GALLONS PER MINUTE
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONNAVY WEAPONS SYSTEM CODE,JG,SEAWOLF CLASS SSN
BODY MATERIALALUMINUM ALLOY 6061
SPOOL QUANTITY3
VALVE DISCHARGE FLOW RATE30.0 GALLONS PER MINUTE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21-327Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3-T3511-0.250X2X10Interchangeable
interchangeable cross-reference
interchangeable
110-503062Interchangeable
interchangeable cross-reference
interchangeable
A3142413Interchangeable
interchangeable cross-reference
interchangeable
13-327Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21327-003?
21327-003 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 21327-003?
There are 6 known substitutes for 21327-003: 21-327, AMS-QQ-A-200/3, AMS-QQ-A-200/3-T3511-0.250X2X10 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21327-003?
21327-003 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-418-8896. 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