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US4-275-189 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

US4-275-189: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, style_designator: STRAIGHT THRU, disk_loading_method: SPRING, flow_control_device: DISK, valve_operation_method: AUTOMATIC, end_item_identification: LIFE BOAT, 7.5M MK IV. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-418-3388, 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
US4-275-189
NSN: 4820-01-418-3388
FSC: 4820 — Valves, Nonpowered
CAGE: 63504 — PALFINGER MARINE USA, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
style_designatorSTRAIGHT THRU
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
end_item_identificationLIFE BOAT, 7.5M MK IV
furnished_items_and_quantity1 DEFLECTOR CAP
NSN4820-01-418-3388
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: US4-275-189 · 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
•
FLOW CONTROL DEVICE: DISK
•
FURNISHED ITEMS AND QUANTITY: 1 DEFLECTOR CAP
•
STYLE DESIGNATOR: STRAIGHT THRU
•
DISK LOADING METHOD: SPRING
•
MATERIAL: COPPER ALLOY BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FURNISHED ITEMS AND QUANTITY1 DEFLECTOR CAP
STYLE DESIGNATORSTRAIGHT THRU
DISK LOADING METHODSPRING
END ITEM IDENTIFICATIONLIFE BOAT, 7.5M MK IV
MATERIALCOPPER ALLOY BODY
VALVE OPERATION METHODAUTOMATIC
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

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 US4-275-189?
US4-275-189 is a VALVE,CHECK.
What is the NSN for US4-275-189?
US4-275-189 is cataloged in the U.S. Government catalog under NSN 4820-01-418-3388. 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.