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831231 ✓ 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 LEAD SET,IGNITION,ENGINE is a the manufacturer industrial component. Key specifications include body_material: METAL, inclosure_type: HERMETICALLY SEALED, overall_length: 4.700 INCHES NOMINAL4.700 INCHES NOMINAL IN, operation_method: MANUAL COMPRESSION, special_features: 11 IN. LG IN, style_designator: ROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-163-7552, 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
831231
NSN: 4820-01-163-7552
FSC: 4820
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
body_materialMETAL
inclosure_typeHERMETICALLY SEALED
overall_length4.700 INCHES NOMINAL4.700 INCHES NOMINAL IN
operation_methodMANUAL COMPRESSION
special_features11 IN. LG IN
style_designatorROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES
operating_temp_range-55.0 TO 150.0 CELSIUS-55.0 TO 150.0 CELSIUS DEGC
body_outside_diameter1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
body_surface_treatmentSILVER
functional_descriptionUSED TO CRIMP AMP AMP-LEAF LOOSE PIECE CONTACTS
unpackaged_unit_weight4.000 OUNCES NOMINAL OZ
end_item_identificationUSED ON SCHEDULE A EQUIPMENT
NSN4820-01-163-7552
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 831231 · 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 19
450316-1Interchangeable
interchangeable cross-reference
interchangeable
90017-3Interchangeable
interchangeable cross-reference
interchangeable
90017-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-14652Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
A-1-143Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 831231?
831231 is a LEAD SET,IGNITION,ENGINE.
What parts can replace 831231?
There are 19 known substitutes for 831231: 450316-1, 90017-3, 90017-2 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 831231?
831231 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-163-7552. 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