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12253779-2 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

12253779-2: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include style_designator: STRAIGHT THRU, mounting_facility: BRACKET(S), operating_pressure: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 170.0 FAHRENHEIT SINGLE RESPONSE DEGF, valve_operation_method: AUTOMATIC, end_item_identification: M578 RECOVERY VEHICLE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-033-9666, 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
12253779-2
NSN: 4820-01-033-9666
FSC: 4820 — Valves, Nonpowered
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
style_designatorSTRAIGHT THRU
mounting_facilityBRACKET(S)
operating_pressure2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp170.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
end_item_identificationM578 RECOVERY VEHICLE
media_for_which_designedOIL, HYDRAULIC SINGLE RESPONSE
center_to_center_distance1.813 INCHES IN
NSN4820-01-033-9666
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 12253779-2 · 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
•
CENTER TO CENTER DISTANCE: 1.813 INCHES IN
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 170.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MOUNTING FACILITY: BRACKET(S)
•
MEDIA FOR WHICH DESIGNED: OIL, HYDRAULIC SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
CENTER TO CENTER DISTANCE1.813 INCHES IN
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP170.0 FAHRENHEIT SINGLE RESPONSE DEGF
MOUNTING FACILITYBRACKET(S)
SPECIAL FEATURESHYDRAULIC SERVICE: OIL PER SPEC MIL-L-46167; FLUIDS AT 30 PLUS OR MINUS2 CENTISTOKES KINEMATIC VISCOSITY (138SUS) BETWEEN PLUS 100 DEG F AND PLUS 150 DEG F THAT ARE COMPATIBLE WITH VALVE COMPONENTS WILL BE USED FOR TEST PURPOSES; TEMP RANGE MINUS 65 DEG F TO PLUS 170 DEG F; PROOF PRESSURE 3000 PSI;BURST PRESSURE THIS VALVE SHALL WITHSTAND A BURST PRESSURE OF 4500 PSI WITHOUT FAILURE,RUPTURE,OR EXTERNAL LEAKAGE; FLOW 20 GPM; CRACKING PRESSURE 5 PLUS OR MINUS 2 PSI; PRESSURE DROP IS NOT TO EXCEED 22 PSI AT 20 GPM; INTERNAL LEAKAGE IS NOT TO EXCEED 1CC/MIN AT 2000 PSI; NO EXTERNAL LEAKAGE PERMISSABLE; MATERIALS TO BE COMPATIBLE WITH OPERATING SPECIFICATIONS DEGF
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
END ITEM IDENTIFICATIONM578 RECOVERY VEHICLE
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 1
4820010339666Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12253779-2?
12253779-2 is a VALVE,CHECK.
What parts can replace 12253779-2?
There is 1 known substitute for 12253779-2: 4820010339666. Substitute compatibility should be verified for your specific system.
What is the NSN for 12253779-2?
12253779-2 is cataloged in the U.S. Government catalog under NSN 4820-01-033-9666. 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.