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595-3669 — VALVE,REGULATING,TEMPERATURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

595-3669: VALVE,REGULATING,TEMPERATURE.

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEAT, body_style: TEE, bulb_length: 20.750 INCHES MINIMUM AND 21.000 INCHES MAXIMUM IN, temp_rating: 400.0 FAHRENHEIT MAXIMUM DEGF, bulb_diameter: 0.938 INCHES NOMINAL IN, mounting_facility: INTERNAL THREAD. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-018-8148, 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
595-3669
NSN: 4820-01-018-8148
FSC: 4820 — Valves, Nonpowered
CAGE: 91424 — MCC POWERS PROCESS CONTROLS DIV OF MARK CONTROLS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEAT
body_styleTEE
bulb_length20.750 INCHES MINIMUM AND 21.000 INCHES MAXIMUM IN
temp_rating400.0 FAHRENHEIT MAXIMUM DEGF
bulb_diameter0.938 INCHES NOMINAL IN
mounting_facilityINTERNAL THREAD
temp_adjustabilityNOT ADJUSTABLE
flow_control_deviceDOUBLE SEATED
thermostatic_elementSTRAP TO PIPE
two-way_valve_actionREVERSE ACTING
capillary_tube_length96.000 INCHES MINIMUM AND 102.000 INCHES MAXIMUM IN
end_connection_quantity3
NSN4820-01-018-8148
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 595-3669 · 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: DOUBLE SEATED
•
TWO-WAY VALVE ACTION: REVERSE ACTING
•
BODY STYLE: TEE
•
BULB LENGTH: 20.750 INCHES MINIMUM AND 21.000 INCHES MAXIMUM IN
•
BULB DIAMETER: 0.938 INCHES NOMINAL IN
•
TEMP RATING: 400.0 FAHRENHEIT MAXIMUM DEGF
•
SUPPLEMENTARY FEATURES: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 3B150 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984,THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
•
END CONNECTION QUANTITY: 3
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDOUBLE SEATED
TWO-WAY VALVE ACTIONREVERSE ACTING
BODY STYLETEE
BULB LENGTH20.750 INCHES MINIMUM AND 21.000 INCHES MAXIMUM IN
BULB DIAMETER0.938 INCHES NOMINAL IN
TEMP RATING400.0 FAHRENHEIT MAXIMUM DEGF
SUPPLEMENTARY FEATURESTHIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 3B150 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984,THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
END CONNECTION QUANTITY3
MOUNTING FACILITYINTERNAL THREAD
CAPILLARY TUBE LENGTH96.000 INCHES MINIMUM AND 102.000 INCHES MAXIMUM IN
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 4
2888231-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6505190Reference document
Same NSN cross-reference
Reference document — Secondary reference
595-WM075TM C08DN03Reference document
Same NSN cross-reference
Reference document — Secondary reference
595-WM075M C08DN03Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 595-3669?
595-3669 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 595-3669?
There are 4 known substitutes for 595-3669: 2888231-1, 6505190, 595-WM075TM C08DN03 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 595-3669?
595-3669 is cataloged in the U.S. Government catalog under NSN 4820-01-018-8148. 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.