123SCH181-20 — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

123SCH181-20: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A ALL ENDS A, connection_style: FLARED (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-052-6567, 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

123SCH181-20

NSN: 4820-00-052-6567
FSC: 4820 — Valves, Nonpowered
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY BODY
seat_angle	37.0 DEGREES FIRST END
thread_class	3A ALL ENDS A
connection_style	FLARED (TUBE) ALL ENDS
style_designator	STRAIGHT THRU
thread_direction	RIGHT-HAND ALL ENDS
surface_treatment	ANODIZE
operating_pressure	60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_method	SPRING
flow_control_device	DISK
nominal_thread_size	1.625 INCHES ALL ENDS IN
maximum_operating_temp	275.0 FAHRENHEIT SECOND RESPONSE DEGF
NSN	4820-00-052-6567

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE

•

CONNECTION STYLE: FLARED (TUBE) ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES ALL ENDS IN

•

OPERATING PRESSURE: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

•

THREAD DIRECTION: RIGHT-HAND ALL ENDS

•

NOMINAL THREAD SIZE: 1.625 INCHES ALL ENDS IN

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
CONNECTION STYLE	FLARED (TUBE) ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	1.250 INCHES ALL ENDS IN
OPERATING PRESSURE	60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	1.625 INCHES ALL ENDS IN
SEAT ANGLE	37.0 DEGREES FIRST END
MAXIMUM OPERATING TEMP	275.0 FAHRENHEIT SECOND RESPONSE DEGF

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

F61A0106Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation

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FREQUENTLY ASKED QUESTIONS

What is 123SCH181-20?

123SCH181-20 is a VALVE,CHECK.

What parts can replace 123SCH181-20?

There is 1 known substitute for 123SCH181-20: F61A0106. Substitute compatibility should be verified for your specific system.

What is the NSN for 123SCH181-20?

123SCH181-20 is cataloged in the U.S. Government catalog under NSN 4820-00-052-6567. This indicates validated use in U.S. government and defense supply chains.

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