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S198 — VALVE,PRESSURE REGULATOR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S198: VALVE,PRESSURE REGULATOR.

The VALVE,PRESSURE REGULATOR is a the manufacturer industrial component. Key specifications include material: GLASS, mouth_type: SMOOTH, capacity_rating: 250.0 MILLILITERS, side_connection_type: ELASTIC TUBING, closure_size_for_which_designed: NO. 3 STD RUBBER STOPPER.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-436-7162, 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
S198
NSN: 4820-00-436-7162
NIINs: 004367162, 007654685, 011045756
FSC: 4820 — Valves, Nonpowered
CAGE: 64042 — WATSON MCDANIEL CO (USA)
SPECIFICATIONS
materialGLASS
mouth_typeSMOOTH
capacity_rating250.0 MILLILITERS
side_connection_typeELASTIC TUBING
closure_size_for_which_designedNO. 3 STD RUBBER STOPPER
NSN4820-00-436-7162
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S198 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES BODY,1/2 IN. VALVE SIZE,5 TO 35 PSI LOW PRESSURE RANGE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES BODY,1/2 IN. VALVE SIZE,5 TO 35 PSI LOW PRESSURE RANGE IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S198?
S198 is a VALVE,PRESSURE REGULATOR.
What is the NSN for S198?
S198 is cataloged in the U.S. Government catalog under NSN 4820-00-436-7162. 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.