573 1 1/2IN — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

573 1 1/2IN: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, valve_size: 1.500 INCHES IN, flange_shape: RECTANGULAR ALL ENDS, nominal_width: 0.688 INCHES ALL ENDS IN, nominal_length: 5.000 INCHES ALL ENDS IN, connection_type: FLANGE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-148-4997, 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

573 1 1/2IN

NSN: 4820-01-148-4997
FSC: 4820 — Valves, Nonpowered
CAGE: 63220 — FLOWSERVE INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
valve_size	1.500 INCHES IN
flange_shape	RECTANGULAR ALL ENDS
nominal_width	0.688 INCHES ALL ENDS IN
nominal_length	5.000 INCHES ALL ENDS IN
connection_type	FLANGE ALL ENDS
special_features	PISTON CHECK TYPE
style_designator	STRAIGHT THRU FLANGED ENDS
mounting_position	HORIZONTAL
nominal_thickness	0.626 INCHES ALL ENDS IN
flange_face_design	RAISED STRAIGHT ALL ENDS
operating_pressure	20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
NSN	4820-01-148-4997

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK

•

FLANGE SHAPE: RECTANGULAR ALL ENDS

•

FLANGE FACE DESIGN: RAISED STRAIGHT ALL ENDS

•

NOMINAL LENGTH: 5.000 INCHES ALL ENDS IN

•

MOUNTING POSITION: HORIZONTAL

•

CONNECTION TYPE: FLANGE ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS

•

OPERATING PRESSURE: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK
FLANGE SHAPE	RECTANGULAR ALL ENDS
FLANGE FACE DESIGN	RAISED STRAIGHT ALL ENDS
NOMINAL LENGTH	5.000 INCHES ALL ENDS IN
MOUNTING POSITION	HORIZONTAL
CONNECTION TYPE	FLANGE ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS
OPERATING PRESSURE	20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
OPERATING PRESSURE	285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
VALVE SIZE	1.500 INCHES IN

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

F-47153Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 573 1 1/2IN?

573 1 1/2IN is a VALVE,CHECK.

What parts can replace 573 1 1/2IN?

There is 1 known substitute for 573 1 1/2IN: F-47153. Substitute compatibility should be verified for your specific system.

What is the NSN for 573 1 1/2IN?

573 1 1/2IN is cataloged in the U.S. Government catalog under NSN 4820-01-148-4997. This indicates validated use in U.S. government and defense supply chains.

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