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S4220-6 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S4220-6: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: CHROMIUM ALLOY OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.188 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 2.000 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 45.000 NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-115-0198, 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
S4220-6
NSN: 4820-00-115-0198
FSC: 4820 — Valves, Nonpowered
CAGE: 52406 — RUGGLES-KLINGEMANN MFG CO DBA THE RUGGLES-KLINGEMANN COMPANY (USA)
SPECIFICATIONS
materialCHROMIUM ALLOY OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.188 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter2.000 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size1.625 INCHES SINGLE THREADED PORTION IN
under_flange_height0.375 INCHES NOMINAL IN
body_inside_diameter1.313 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch18 SINGLE THREADED PORTION
thread_series_designatorUNEF SINGLE THREADED PORTION
NSN4820-00-115-0198
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S4220-6 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.188 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.000 INCHES NOMINAL IN
•
THREAD LENGTH: 0.188 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 1.313 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.625 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.375 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL IN
FLANGE DIAMETER2.000 INCHES NOMINAL IN
THREAD LENGTH0.188 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER1.313 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.625 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.375 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
MATERIALCHROMIUM ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S4220-6?
S4220-6 is a SEAT,VALVE.
What is the NSN for S4220-6?
S4220-6 is cataloged in the U.S. Government catalog under NSN 4820-00-115-0198. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.