L81400-20MMK — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

L81400-20MMK: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL OR VERTICAL, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-059-1172, 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

L81400-20MMK

NSN: 4820-01-059-1172
FSC: 4820 — Valves, Nonpowered
CAGE: 01178 — LOURDES INDUSTRIES, INC. (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
connection_type	UNTHREADED INTERNAL TUBE ALL ENDS
connection_style	PLAIN (TUBE) ALL ENDS
style_designator	STRAIGHT THRU
mounting_position	HORIZONTAL OR VERTICAL
operating_pressure	400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_device	POPPET
maximum_operating_temp	400.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_method	AUTOMATIC
media_for_which_designed	FUEL/OIL, HYDROCARBON SECOND RESPONSE
material_document_and_classification	QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE BODY
nominal_outside_diameter_tube_accommodated	1.250 INCHES ALL ENDS IN
NSN	4820-01-059-1172

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

CONNECTION STYLE: PLAIN (TUBE) ALL ENDS

•

MOUNTING POSITION: HORIZONTAL OR VERTICAL

•

CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
CONNECTION STYLE	PLAIN (TUBE) ALL ENDS
MOUNTING POSITION	HORIZONTAL OR VERTICAL
CONNECTION TYPE	UNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-200/3, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE SEAT
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	1.250 INCHES ALL ENDS IN
OPERATING PRESSURE	400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

SUBSTITUTES & CROSS-REFERENCES 2

GV500TCReference document

Same NSN cross-reference

Reference document — Drawing number reference only

GV500TC20MMKSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is L81400-20MMK?

L81400-20MMK is a VALVE,CHECK.

What parts can replace L81400-20MMK?

There are 2 known substitutes for L81400-20MMK: GV500TC, GV500TC20MMK. Substitute compatibility should be verified for your specific system.

What is the NSN for L81400-20MMK?

L81400-20MMK is cataloged in the U.S. Government catalog under NSN 4820-01-059-1172. This indicates validated use in U.S. government and defense supply chains.

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