H-37-4 — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

H-37-4: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A ALL ENDS A, hole_diameter: 0.410 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END, outside_diameter: 0.595 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-127-8688, 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

H-37-4

NSN: 4820-00-127-8688
NIINs: 001278688, 014370044
FSC: 4820 — Valves, Nonpowered
CAGE: 06239 — AUSCO INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
seat_angle	37.0 DEGREES FIRST END
thread_class	3A ALL ENDS A
hole_diameter	0.410 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
connection_style	EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
outside_diameter	0.595 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
style_designator	FLAT INTERNAL TEETH
thread_direction	RIGHT-HAND ALL ENDS
surface_treatment	NICKEL OVERALL
material_thickness	0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
operating_pressure	4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_device	POPPET
NSN	4820-00-127-8688

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END

•

MINIMUM OPERATING TEMP: -65.0 FAHRENHEIT DEGF

•

STYLE DESIGNATOR: STRAIGHT THRU

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
MINIMUM OPERATING TEMP	-65.0 FAHRENHEIT DEGF
STYLE DESIGNATOR	STRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-853,TY A MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-853,TY A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
OPERATING PRESSURE	4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 H-37-4?

H-37-4 is a VALVE,CHECK.

What is the NSN for H-37-4?

H-37-4 is cataloged in the U.S. Government catalog under NSN 4820-00-127-8688. This indicates validated use in U.S. government and defense supply chains.

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H-37-4 — VALVE,CHECK

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