2643-820-23 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

2643-820-23: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC SEAT, seat_radius: 0.375 INCHES NOMINAL IN, overall_height: 0.296 INCHES NOMINAL IN, special_features: 6 GROOVES; FOR 0.750 IN. AND 1.000 IN.

BALL VALVE; MATERIAL URETHANE IN, style_designator: PLAIN, body_inside_diameter: 0.813 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 4820-01-423-7663, 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

2643-820-23

NSN: 4820-01-423-7663
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	PLASTIC SEAT
seat_radius	0.375 INCHES NOMINAL IN
overall_height	0.296 INCHES NOMINAL IN
special_features	6 GROOVES; FOR 0.750 IN. AND 1.000 IN. BALL VALVE; MATERIAL URETHANE IN
style_designator	PLAIN
body_inside_diameter	0.813 INCHES NOMINAL IN
body_outside_diameter	1.435 INCHES NOMINAL IN
seating_surface_shape	RADIAL
end_item_identification	SEAWOLF CLASS SSN
NSN	4820-01-423-7663

COMPONENT DIAGRAM

KEY FEATURES

•

BODY OUTSIDE DIAMETER: 1.435 INCHES NOMINAL IN

•

STYLE DESIGNATOR: PLAIN

•

BODY INSIDE DIAMETER: 0.813 INCHES NOMINAL IN

•

SEAT RADIUS: 0.375 INCHES NOMINAL IN

•

MATERIAL: PLASTIC SEAT

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.296 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER	1.435 INCHES NOMINAL IN
STYLE DESIGNATOR	PLAIN
BODY INSIDE DIAMETER	0.813 INCHES NOMINAL IN
SEAT RADIUS	0.375 INCHES NOMINAL IN
SPECIAL FEATURES	6 GROOVES; FOR 0.750 IN. AND 1.000 IN. BALL VALVE; MATERIAL URETHANE IN
END ITEM IDENTIFICATION	SEAWOLF CLASS SSN
MATERIAL	PLASTIC SEAT
SEATING SURFACE SHAPE	RADIAL

SUBSTITUTES & CROSS-REFERENCES 6

DF331794 ASSEMBLY 1A FIND 6Reference document

Same NSN cross-reference

Reference document — Secondary reference

6758076Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

801-6758076 ASSEMBLY 1A FIND 6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

264382023-A6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

DF331794Reference document

Same NSN cross-reference

Reference document — Secondary reference

2643-820-23 FN A6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 2643-820-23?

2643-820-23 is a SEAT,VALVE.

What parts can replace 2643-820-23?

There are 6 known substitutes for 2643-820-23: DF331794 ASSEMBLY 1A FIND 6, 6758076, 801-6758076 ASSEMBLY 1A FIND 6 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 2643-820-23?

2643-820-23 is cataloged in the U.S. Government catalog under NSN 4820-01-423-7663. This indicates validated use in U.S. government and defense supply chains.

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2643-820-23 — SEAT,VALVE

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