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Technical Data Sheet
PartsTable / COMPONENT / 803-7063850-C831
803-7063850-C831 ✓ 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 TAILPIECE,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, usage_design: EXTERNAL, special_features: MATERIAL DOCUMENTATION IS ASTM B61 WITH ALTERNATIVE MIL-F-1183J SUPP 1A A, end_item_identification: VALVE,SWING CHECK (1.5 IN) 803-1385721-71 IN, part_name_assigned_by_controlling_agency: RETAINER RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-494-3441, 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
803-7063850-C831
NSN: 4820-01-494-3441
FSC: 4820
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY
usage_designEXTERNAL
special_featuresMATERIAL DOCUMENTATION IS ASTM B61 WITH ALTERNATIVE MIL-F-1183J SUPP 1A A
end_item_identificationVALVE,SWING CHECK (1.5 IN) 803-1385721-71 IN
part_name_assigned_by_controlling_agencyRETAINER RING
NSN4820-01-494-3441
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-7063850-C831 · 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 11
C35823PC14-1INInterchangeable
interchangeable cross-reference
interchangeable
803-1385714-52-05Interchangeable
interchangeable cross-reference
interchangeable
A6689-129-222Interchangeable
interchangeable cross-reference
interchangeable
33100-D-360Interchangeable
interchangeable cross-reference
interchangeable
803-7063850Interchangeable
interchangeable cross-reference
interchangeable
803-7063850-C3X3-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-7063850-C831?
803-7063850-C831 is a TAILPIECE,VALVE.
What parts can replace 803-7063850-C831?
There are 11 known substitutes for 803-7063850-C831: C35823PC14-1IN, 803-1385714-52-05, A6689-129-222 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-7063850-C831?
803-7063850-C831 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-494-3441. 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