1741AS346 — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

1741AS346: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL TUBE ALL ENDS, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.625 INCHES ALL ENDS IN, maximum_operating_temp: 125.0 FAHRENHEIT SINGLE RESPONSE DEGF, minimum_operating_temp: -25.0 FAHRENHEIT DEGF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-435-8698, 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

1741AS346

NSN: 4820-01-435-8698
FSC: 4820 — Valves, Nonpowered
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

thread_class	3B ALL ENDS
connection_type	THREADED INTERNAL TUBE ALL ENDS
operating_pressure	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size	1.625 INCHES ALL ENDS IN
maximum_operating_temp	125.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp	-25.0 FAHRENHEIT DEGF
valve_operation_method	AUTOMATIC
opening_pressure_setting	30.0 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch	12 ALL ENDS
thread_series_designator	UN ALL ENDS
nominal_outside_diameter_tube_accommodated	1.250 INCHES ALL ENDS IN
NSN	4820-01-435-8698

COMPONENT DIAGRAM

KEY FEATURES

•

MINIMUM OPERATING TEMP: -25.0 FAHRENHEIT DEGF

•

CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES ALL ENDS IN

•

OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

•

NOMINAL THREAD SIZE: 1.625 INCHES ALL ENDS IN

•

MAXIMUM OPERATING TEMP: 125.0 FAHRENHEIT SINGLE RESPONSE DEGF

•

THREAD CLASS: 3B ALL ENDS

•

THREAD QUANTITY PER INCH: 12 ALL ENDS

TECHNICAL CHARACTERISTICS

MINIMUM OPERATING TEMP	-25.0 FAHRENHEIT DEGF
CONNECTION TYPE	THREADED INTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	1.250 INCHES ALL ENDS IN
OPERATING PRESSURE	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE	1.625 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP	125.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD CLASS	3B ALL ENDS
THREAD QUANTITY PER INCH	12 ALL ENDS
THREAD SERIES DESIGNATOR	UN ALL ENDS
OPENING PRESSURE SETTING	30.0 POUNDS PER SQUARE INCH LBS

SUBSTITUTES & CROSS-REFERENCES 3

4CS-10-A-21Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

1741AS346-1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

626618Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 1741AS346?

1741AS346 is a VALVE,CHECK.

What parts can replace 1741AS346?

There are 3 known substitutes for 1741AS346: 4CS-10-A-21, 1741AS346-1, 626618. Substitute compatibility should be verified for your specific system.

What is the NSN for 1741AS346?

1741AS346 is cataloged in the U.S. Government catalog under NSN 4820-01-435-8698. This indicates validated use in U.S. government and defense supply chains.

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