163981 — SEAL,PLAIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

163981: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL SPRING, seal_width: 0.312 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 2.625 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.750 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This part is cataloged in the U.S.

Government catalog under NSN 6685-00-062-4404, 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

163981

NSN: 6685-00-062-4404
NIINs: 000624404, 007649339
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
CAGE: 15434 — CUMMINS INC. (USA)

SPECIFICATIONS

material	STEEL SPRING
seal_width	0.312 INCHES NOMINAL IN
construction	SOLID
housing_bore_diameter	2.625 INCHES NOMINAL IN
accommodated_shaft_diameter	1.750 INCHES NOMINAL IN
cross-sectional_shape_style	SINGLE LIP
NSN	6685-00-062-4404

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: BUTTERFLY

•

FSC APPLICATION DATA: 1. ENGINE INSTRUMENTS,AIRCRAFT

•

SPRING OPERATED PRESSURE RELIEF: NOT PROVIDED

•

LARGEST OUTSIDE DIAMETER: 2.878 INCHES NOMINAL IN

•

MOUNTING METHOD: FLANGE

•

VALVE TRAVEL DISTANCE: 0.310 INCHES NOMINAL IN

•

OPERATING TEMP RATING: 186.0 FAHRENHEIT NOMINAL DEGF

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	BUTTERFLY
OVERALL HEIGHT	3.125 INCHES NOMINAL IN
FSC APPLICATION DATA	1. ENGINE INSTRUMENTS,AIRCRAFT
SPRING OPERATED PRESSURE RELIEF	NOT PROVIDED
LARGEST OUTSIDE DIAMETER	2.878 INCHES NOMINAL IN
MOUNTING METHOD	FLANGE
VALVE TRAVEL DISTANCE	0.310 INCHES NOMINAL IN
OPERATING TEMP RATING	186.0 FAHRENHEIT NOMINAL DEGF
THERMOSTAT TYPE	BIMETALLIC
USAGE DESIGN	DESIGNED FOR USE WITH ENGINE COOLANT

SUBSTITUTES & CROSS-REFERENCES 1

VD103118Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 163981?

163981 is a SEAL,PLAIN.

What parts can replace 163981?

There is 1 known substitute for 163981: VD103118. Substitute compatibility should be verified for your specific system.

What is the NSN for 163981?

163981 is cataloged in the U.S. Government catalog under NSN 6685-00-062-4404. This indicates validated use in U.S. government and defense supply chains.

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163981 — SEAL,PLAIN

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