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7W1543 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7W1543: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL TUBING, design_form: PREBENT, thread_class: 3B SINGLE END, wall_thickness: 1.65 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND SINGLE END, seat_angle_in_deg: 37.0 SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-426-7751, 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
7W1543
NSN: 4820-01-426-7751
NIINs: 014267751, 014284433
FSC: 4820 — Valves, Nonpowered
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL TUBING
design_formPREBENT
thread_class3B SINGLE END
wall_thickness1.65 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND SINGLE END
seat_angle_in_deg37.0 SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size1.312 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, FLARE SINGLE END
tube_outside_diameter25.4 MILLIMETERS NOMINAL MM
end_item_identificationW/S CODE, STRATEGIC SEALIFT CONVERSION SHIPS CLASS
thread_quantity_per_inch12 SINGLE END
NSN4820-01-426-7751
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7W1543 · 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
SUBSTITUTES & CROSS-REFERENCES 1
7W1543 ITEM 36Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7W1543?
7W1543 is a TUBE ASSEMBLY,METAL.
What parts can replace 7W1543?
There is 1 known substitute for 7W1543: 7W1543 ITEM 36. Substitute compatibility should be verified for your specific system.
What is the NSN for 7W1543?
7W1543 is cataloged in the U.S. Government catalog under NSN 4820-01-426-7751. This indicates validated use in U.S. government and defense supply chains.
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