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3-1450-75 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3-1450-75: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include end_item_identification: F/A-18 EF AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-202-5939, 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
3-1450-75
NSN: 4820-00-202-5939
NIINs: 002025939, 016441209
FSC: 4820 — Valves, Nonpowered
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)
SPECIFICATIONS
end_item_identificationF/A-18 EF AIRCRAFT
NSN4820-00-202-5939
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3-1450-75 · 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
•
CONNECTION STYLE: INVERTED FLARE (TUBE) ALL ENDS
•
MOUNTING POSITION: HORIZONTAL
•
CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
CONNECTION STYLEINVERTED FLARE (TUBE) ALL ENDS
MOUNTING POSITIONHORIZONTAL
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
OPERATING PRESSURE75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
SEAT ANGLE60.0 DEGREES ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 8
4-1049-77Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS28882A-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4820002025939Reference document
Same NSN cross-reference
Reference document — Informative reference only
3-1450-77Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-V-7899Reference document
Same NSN cross-reference
Reference document — Secondary reference
HE712-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3-1450-75?
3-1450-75 is a VALVE,CHECK.
What parts can replace 3-1450-75?
There are 8 known substitutes for 3-1450-75: 4-1049-77, MS28882A-6, 4820002025939 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-1450-75?
3-1450-75 is cataloged in the U.S. Government catalog under NSN 4820-00-202-5939. This indicates validated use in U.S. government and defense supply chains.
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