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20055406A/33A/SWS/1NM — Technical Data Sheet

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— · 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,VACUUM BREAKING is a the manufacturer industrial component. Key specifications include phase: THREE, width: 1.375 INCHES NOMINAL IN, length: 2.000 INCHES NOMINAL IN, diameter: 0.375 INCHES NOMINAL IN, material: ALUMINUM OVERALL, drive_type: SLOTTED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-559-8875, 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
20055406A/33A/SWS/1NM
NSN: 4820-01-559-8875
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
phaseTHREE
width1.375 INCHES NOMINAL IN
length2.000 INCHES NOMINAL IN
diameter0.375 INCHES NOMINAL IN
materialALUMINUM OVERALL
drive_typeSLOTTED
flow_angle90.0 DEGREES
leg_length1.688 INCHES NOMINAL FIRST END IN
body_radius0.687 INCHES NOMINAL IN
bonnet_typeINSIDE SPRING
grip_length0.505 INCHES NOMINAL IN
current_typeAC
NSN4820-01-559-8875
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20055406A/33A/SWS/1NM · 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 17
20360InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
150-428GPC360InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
389988PC360InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
359B112InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
452-1404InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
109J15333InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20055406A/33A/SWS/1NM?
20055406A/33A/SWS/1NM is a VALVE,VACUUM BREAKING.
What parts can replace 20055406A/33A/SWS/1NM?
There are 17 known substitutes for 20055406A/33A/SWS/1NM: 20360, 150-428GPC360, 389988PC360 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20055406A/33A/SWS/1NM?
20055406A/33A/SWS/1NM is cataloged in the Federal Logistics Information System under NSN 4820-01-559-8875. 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: October 2026