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Technical Data Sheet
PartsTable / COMPONENT / 17390N, CLASS LNS-5L1,1/2-INL1
17390N, CLASS LNS-5L1,1/2-INL1 ✓ 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 17390N, CLASS LNS-5L1,1/2-INL1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-862-4691, 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
17390N, CLASS LNS-5L1,1/2-INL1
NSN: 4820-00-862-4691
FSC: 4820
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number17390N, CLASS LNS-5L1,1/2-INL1
NSN4820-00-862-4691
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 17390N, CLASS LNS-5L1,1/2-INL1 · 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
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
MATERIAL: COBALT ALLOY SEAT
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
•
FILTER: NOT INCLUDED
•
BODY STYLE: STRAIGHT THRU
•
FIRST END FLANGE OUTSIDE DIAMETER: 3.750 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDIAPHRAGM
MATERIALCOBALT ALLOY SEAT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
FILTERNOT INCLUDED
MATERIALSTEEL CORROSION RESISTING STEM
BODY STYLESTRAIGHT THRU
FIRST END FLANGE OUTSIDE DIAMETER3.750 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END BOLT CIRCLE DIAMETER3.250 INCHES NOMINAL IN
FIRST END RAISED FACE HEIGHT0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
CA1395484-53120Interchangeable
interchangeable cross-reference
interchangeable
LNS153-2ALT1Interchangeable
interchangeable cross-reference
interchangeable
4384570-504Interchangeable
interchangeable cross-reference
interchangeable
N11122Interchangeable
interchangeable cross-reference
interchangeable
11122Interchangeable
interchangeable cross-reference
interchangeable
53629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17390N, CLASS LNS-5L1,1/2-INL1?
17390N, CLASS LNS-5L1,1/2-INL1 is a 17390N, CLASS LNS-5L1,1/2-INL1.
What parts can replace 17390N, CLASS LNS-5L1,1/2-INL1?
There are 27 known substitutes for 17390N, CLASS LNS-5L1,1/2-INL1: CA1395484-53120, LNS153-2ALT1, 4384570-504 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17390N, CLASS LNS-5L1,1/2-INL1?
17390N, CLASS LNS-5L1,1/2-INL1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-862-4691. 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