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L56800-1 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

L56800-1: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, style_designator: STRAIGHT THRU. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-409-1734, 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
L56800-1
NSN: 4820-00-409-1734
FSC: 4820 — Valves, Nonpowered
CAGE: 01178 — LOURDES INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
mounting_positionHORIZONTAL OR VERTICAL
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size1.312 INCHES FIRST END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-00-409-1734
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: L56800-1 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: POPPET
•
CONNECTION STYLE: FLARED (TUBE) FIRST END
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES FIRST END IN
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 1.312 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION STYLEFLARED (TUBE) FIRST END
MOUNTING POSITIONHORIZONTAL OR VERTICAL
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
MAXIMUM OPERATING TEMP200.0 FAHRENHEIT SINGLE 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 2
A51E9070-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A51E9070Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 L56800-1?
L56800-1 is a VALVE,CHECK.
What parts can replace L56800-1?
There are 2 known substitutes for L56800-1: A51E9070-1, A51E9070. Substitute compatibility should be verified for your specific system.
What is the NSN for L56800-1?
L56800-1 is cataloged in the U.S. Government catalog under NSN 4820-00-409-1734. This indicates validated use in U.S. government and defense supply chains.
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