667790 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

667790: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 3.996 INCHES NOMINAL IN, head_style: CONTOUR, skirt_type: SEMISPLIT, overall_height: 3.760 INCHES NOMINAL IN, retaining_ring_groove: INCLUDED, skirt_bottom_cutaway_feature: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-341-8674, 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

667790

NSN: 2815-01-341-8674
FSC: 2815 — Diesel Engines and Components
CAGE: 60764 — WIGGINS LIFT CO INC (USA)

SPECIFICATIONS

diameter	3.996 INCHES NOMINAL IN
head_style	CONTOUR
skirt_type	SEMISPLIT
overall_height	3.760 INCHES NOMINAL IN
ring_groove_quantity	3
retaining_ring_groove	INCLUDED
skirt_bottom_cutaway_feature	NOT INCLUDED
NSN	2815-01-341-8674

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINING RING GROOVE: INCLUDED

•

DIAMETER: 3.996 INCHES NOMINAL IN

•

HEAD STYLE: CONTOUR

•

RING GROOVE QUANTITY: 3

•

SKIRT BOTTOM CUTAWAY FEATURE: NOT INCLUDED

•

RING: NOT INCLUDED

•

SKIRT TYPE: SEMISPLIT

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	3.760 INCHES NOMINAL IN
RETAINING RING GROOVE	INCLUDED
DIAMETER	3.996 INCHES NOMINAL IN
HEAD STYLE	CONTOUR
RING GROOVE QUANTITY	3
SKIRT BOTTOM CUTAWAY FEATURE	NOT INCLUDED
RING	NOT INCLUDED
SKIRT TYPE	SEMISPLIT

OTHER ITEMS IN FSC 2815 — Diesel Engines and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813

SUBSTITUTES & CROSS-REFERENCES 1

40-3010408Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 667790?

667790 is a PISTON,INTERNAL COMBUSTION ENGIN.

What parts can replace 667790?

There is 1 known substitute for 667790: 40-3010408. Substitute compatibility should be verified for your specific system.

What is the NSN for 667790?

667790 is cataloged in the U.S. Government catalog under NSN 2815-01-341-8674. This indicates validated use in U.S. government and defense supply chains.

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667790 — PISTON,INTERNAL COMBUSTION ENGIN

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