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PartsTable / COMPONENT / 17B1N4021-501
17B1N4021-501 ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include phase: THREE, filter_type: PRESSURE, current_type: AC, prime_mover_type: ELECTRIC MOTOR, special_features: 3-MICRON FILTER, voltage_in_volts: 440.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-317-9119, 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
17B1N4021-501
NSN: 4820-01-317-9119
FSC: 4820
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
phaseTHREE
filter_typePRESSURE
current_typeAC
filter_quantity1
prime_mover_typeELECTRIC MOTOR
special_features3-MICRON FILTER
voltage_in_volts440.0
frequency_in_hertz60.0
disinfection_unit_typeCHLORINATOR
potable_water_capacity46000.0 GALLONS PER DAY
part_name_assigned_by_controlling_agencyREVERSE OSMOSIS UNIT
NSN4820-01-317-9119
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 17B1N4021-501 · 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 13
250001Interchangeable
interchangeable cross-reference
interchangeable
S0-6389Interchangeable
interchangeable cross-reference
interchangeable
B91889Interchangeable
interchangeable cross-reference
interchangeable
093-49831-8Interchangeable
interchangeable cross-reference
interchangeable
8645Interchangeable
interchangeable cross-reference
interchangeable
2212Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17B1N4021-501?
17B1N4021-501 is a VALVE,SAFETY RELIEF.
What parts can replace 17B1N4021-501?
There are 13 known substitutes for 17B1N4021-501: 250001, S0-6389, B91889 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17B1N4021-501?
17B1N4021-501 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-317-9119. 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