8543-009-440 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

8543-009-440: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_diameter: 4.895 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.156 INCHES NOMINAL IN, body_inside_diameter: 4.000 INCHES NOMINAL IN, body_outside_diameter: 4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-342-1731, 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

8543-009-440

NSN: 4820-01-342-1731
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)

SPECIFICATIONS

material	STEEL OVERALL
flange_diameter	4.895 INCHES NOMINAL IN
style_designator	PLAIN FLANGED
under_flange_height	0.156 INCHES NOMINAL IN
body_inside_diameter	4.000 INCHES NOMINAL IN
body_outside_diameter	4.500 INCHES NOMINAL IN
seating_surface_shape	O-RING
end_item_identification	SWING CHECK VALVE
flange_seat_to_disk_end_height	0.937 INCHES NOMINAL IN
reference_number_differentiating_characteristics	MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
NSN	4820-01-342-1731

COMPONENT DIAGRAM

KEY FEATURES

•

FLANGE SEAT TO DISK END HEIGHT: 0.937 INCHES NOMINAL IN

•

FLANGE DIAMETER: 4.895 INCHES NOMINAL IN

•

BODY OUTSIDE DIAMETER: 4.500 INCHES NOMINAL IN

•

STYLE DESIGNATOR: PLAIN FLANGED

•

BODY INSIDE DIAMETER: 4.000 INCHES NOMINAL IN

•

UNDER FLANGE HEIGHT: 0.156 INCHES NOMINAL IN

•

MATERIAL: STEEL OVERALL

TECHNICAL CHARACTERISTICS

FLANGE SEAT TO DISK END HEIGHT	0.937 INCHES NOMINAL IN
FLANGE DIAMETER	4.895 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER	4.500 INCHES NOMINAL IN
STYLE DESIGNATOR	PLAIN FLANGED
BODY INSIDE DIAMETER	4.000 INCHES NOMINAL IN
UNDER FLANGE HEIGHT	0.156 INCHES NOMINAL IN
END ITEM IDENTIFICATION	SWING CHECK VALVE
MATERIAL	STEEL OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
SEATING SURFACE SHAPE	O-RING

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 3

8543-009-440VMReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

73811-130/8543-009-440VMSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

73811-130/8543-009-440Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 8543-009-440?

8543-009-440 is a SEAT,VALVE.

What parts can replace 8543-009-440?

There are 3 known substitutes for 8543-009-440: 8543-009-440VM, 73811-130/8543-009-440VM, 73811-130/8543-009-440. Substitute compatibility should be verified for your specific system.

What is the NSN for 8543-009-440?

8543-009-440 is cataloged in the U.S. Government catalog under NSN 4820-01-342-1731. This indicates validated use in U.S. government and defense supply chains.

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8543-009-440 — SEAT,VALVE

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