PartsTable
Technical Data Sheet

N250RK-3/4 — PARTS KIT,PRESSURE REGULATING VA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N250RK-3/4: PARTS KIT,PRESSURE REGULATING VA.

PARTS KIT,PRESSURE REGULATING VA. Key specifications include nonsupply_items_and_quantities: MODULE REPLACEMENT 1,DIAPHRAGM 1. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-273-3685, 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
N250RK-3/4
NSN: 4820-01-273-3685
FSC: 4820 — Valves, Nonpowered
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
component_quantity2
nonsupply_items_and_quantitiesMODULE REPLACEMENT 1,DIAPHRAGM 1
NSN4820-01-273-3685
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N250RK-3/4 · 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
•
COMPONENT QUANTITY: 2
•
NONSUPPLY ITEMS AND QUANTITIES: MODULE REPLACEMENT 1,DIAPHRAGM 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY2
NONSUPPLY ITEMS AND QUANTITIESMODULE REPLACEMENT 1,DIAPHRAGM 1
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
N250RK-3/4INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 N250RK-3/4?
N250RK-3/4 is a PARTS KIT,PRESSURE REGULATING VA.
What parts can replace N250RK-3/4?
There is 1 known substitute for N250RK-3/4: N250RK-3/4IN. Substitute compatibility should be verified for your specific system.
What is the NSN for N250RK-3/4?
N250RK-3/4 is cataloged in the U.S. Government catalog under NSN 4820-01-273-3685. 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.