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PartsTable / COMPONENT / 55370-3 ITEM 5
55370-3 ITEM 5 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include overall_depth: 3.250 INCHES NOMINAL IN, outside_diameter: 5.688 INCHES NOMINAL IN, special_features: ONE TERMINAL BOARD AND 2 STUFFING TUBE, style_designator: ROUND, SURFACE MOUNTING, end_item_identification: SPRUANCE CLASS DD (963). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-123-8366, 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
55370-3 ITEM 5
NSN: 4820-01-123-8366
FSC: 4820
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
overall_depth3.250 INCHES NOMINAL IN
outside_diameter5.688 INCHES NOMINAL IN
special_featuresONE TERMINAL BOARD AND 2 STUFFING TUBE
style_designatorROUND, SURFACE MOUNTING
end_item_identificationSPRUANCE CLASS DD (963)
NSN4820-01-123-8366
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 55370-3 ITEM 5 · 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 6
142928HInterchangeable
interchangeable cross-reference
interchangeable
301209Interchangeable
interchangeable cross-reference
interchangeable
MS51845-9Interchangeable
interchangeable cross-reference
interchangeable
CAC92130Interchangeable
interchangeable cross-reference
interchangeable
WW-P-460Interchangeable
interchangeable cross-reference
interchangeable
36565Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55370-3 ITEM 5?
55370-3 ITEM 5 is a SEAT,VALVE.
What parts can replace 55370-3 ITEM 5?
There are 6 known substitutes for 55370-3 ITEM 5: 142928H, 301209, MS51845-9 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55370-3 ITEM 5?
55370-3 ITEM 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-123-8366. 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