139-020 — RING SET,PISTON

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

139-020: RING SET,PISTON.

The RING SET,PISTON is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 2805-00-351-7780, 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

139-020

NSN: 2805-00-351-7780
NIINs: 003517780, 011752469
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 74069 — HASTINGS MANUFACTURING CO DIV HASTINGS MANUFACTURING COMPANY (USA)

SPECIFICATIONS

Part Number	139-020
NSN	2805-00-351-7780

COMPONENT DIAGRAM

KEY FEATURES

•

BORE DIAMETER OVERSIZE: 0.020 INCHES IN

•

RING SET COMPONENT PARTS: COMPRESSION RING 4,EXPANDER RING 4,RAIL 4

•

PISTON ACCOMMODATION QUANTITY: 2

•

STANDARD BORE DIAMETER: 4.000 INCHES IN

TECHNICAL CHARACTERISTICS

BORE DIAMETER OVERSIZE	0.020 INCHES IN
RING SET COMPONENT PARTS	COMPRESSION RING 4,EXPANDER RING 4,RAIL 4
PISTON ACCOMMODATION QUANTITY	2
STANDARD BORE DIAMETER	4.000 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 1

C3AZ6148GReference 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 139-020?

139-020 is a RING SET,PISTON.

What parts can replace 139-020?

There is 1 known substitute for 139-020: C3AZ6148G. Substitute compatibility should be verified for your specific system.

What is the NSN for 139-020?

139-020 is cataloged in the U.S. Government catalog under NSN 2805-00-351-7780. This indicates validated use in U.S. government and defense supply chains.

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139-020 — RING SET,PISTON

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