2640-645 — VALVE,BALL

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

2640-645: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, valve_size: 2.000 INCHES IN, flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, style_designator: STRAIGHT THRU FLANGED ENDS, nominal_thickness: 1.094 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-118-3893, 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

2640-645

NSN: 4820-01-118-3893
NIINs: 011183893, 011378180, 011844496, 011871993
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	COPPER ALLOY BODY
valve_size	2.000 INCHES IN
flange_shape	ROUND WITH HOLES FIRST END
connection_type	FLANGE FIRST END
special_features	WITH FLANGED TAILPIECE,1.281 IN. THK FLANGE,6.375 IN. DIA,WITH FIVE 0.812 IN. DIA BOLT HOLES EQUALLY SPACED ON A 4.750 IN. DIA BOLT CIRCLE AND SPOTFACED 1.500 IN. DIA TO A THK OF 1.250 IN
style_designator	STRAIGHT THRU FLANGED ENDS
nominal_thickness	1.094 INCHES FIRST END IN
bolt_hole_quantity	5 FIRST END
flange_face_design	PLAIN FIRST END
operating_pressure	650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
face_to_face_distance	9.870 INCHES IN
maximum_operating_temp	150.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN	4820-01-118-3893

COMPONENT DIAGRAM

KEY FEATURES

•

FLANGE SHAPE: ROUND WITH HOLES ALL ENDS

•

FLANGE FACE DESIGN: PLAIN ALL ENDS

•

BOLT CIRCLE NOMINAL DIAMETER: 4.438 INCHES ALL ENDS IN

•

CONNECTION TYPE: FLANGE ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE

•

BOLT HOLE NOMINAL DIAMETER: 1.688 INCHES ALL ENDS IN

TECHNICAL CHARACTERISTICS

FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGN	PLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER	4.438 INCHES ALL ENDS IN
CONNECTION TYPE	FLANGE ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE STEM
BOLT HOLE NOMINAL DIAMETER	1.688 INCHES ALL ENDS IN
OPERATING PRESSURE	650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OUTSIDE DIAMETER	5.562 INCHES ALL ENDS IN

SUBSTITUTES & CROSS-REFERENCES 1

SS845-2109889Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 2640-645?

2640-645 is a VALVE,BALL.

What parts can replace 2640-645?

There is 1 known substitute for 2640-645: SS845-2109889. Substitute compatibility should be verified for your specific system.

What is the NSN for 2640-645?

2640-645 is cataloged in the U.S. Government catalog under NSN 4820-01-118-3893. This indicates validated use in U.S. government and defense supply chains.

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