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Technical Data Sheet
PartsTable / COMPONENT / 803-1385721-41
803-1385721-41 ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-394-3327, 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
803-1385721-41
NSN: 4820-01-394-3327
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN4820-01-394-3327
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-1385721-41 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSEAWOLF SUBMARINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
01010S000050Interchangeable
interchangeable cross-reference
interchangeable
4211T1-2Interchangeable
interchangeable cross-reference
interchangeable
B6000 1/2INInterchangeable
interchangeable cross-reference
interchangeable
803-1385721-4Interchangeable
interchangeable cross-reference
interchangeable
5399-028R 3/4INInterchangeable
interchangeable cross-reference
interchangeable
5399-028RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-1385721-41?
803-1385721-41 is a VALVE,CHECK.
What parts can replace 803-1385721-41?
There are 7 known substitutes for 803-1385721-41: 01010S000050, 4211T1-2, B6000 1/2IN and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-1385721-41?
803-1385721-41 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-394-3327. 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