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526-12776 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

526-12776: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include end_item_identification: ALOFTS SONAR SYSTEM MODEL 980 (V1), part_name_assigned_by_controlling_agency: VALVE, THREE WAY THERMOSTATIC VALVE FOR AUTOMATIC COOLER BYPASS, BRCC NO 138324. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-524-8965, 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
526-12776
NSN: 4820-01-524-8965
FSC: 4820 — Valves, Nonpowered
CAGE: 9Y580 — L3HARRIS TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
end_item_identificationALOFTS SONAR SYSTEM MODEL 980 (V1)
part_name_assigned_by_controlling_agencyVALVE, THREE WAY THERMOSTATIC VALVE FOR AUTOMATIC COOLER BYPASS, BRCC NO 138324
NSN4820-01-524-8965
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 526-12776 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE, THREE WAY THERMOSTATIC VALVE FOR AUTOMATIC COOLER BYPASS, BRCC NO 138324
END ITEM IDENTIFICATIONALOFTS SONAR SYSTEM MODEL 980 (V1)
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 2
67365-110Reference document
Same NSN cross-reference
Reference document — Secondary reference
138324Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 526-12776?
526-12776 is a VALVE,CHECK.
What parts can replace 526-12776?
There are 2 known substitutes for 526-12776: 67365-110, 138324. Substitute compatibility should be verified for your specific system.
What is the NSN for 526-12776?
526-12776 is cataloged in the U.S. Government catalog under NSN 4820-01-524-8965. This indicates validated use in U.S. government and defense supply chains.
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