3946A020 — RING,PISTON

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3946A020: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, ring_style: CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN, surface_treatment: CHROMIUM OUTSIDE PERIPHERY, radial_wall_thickness: 0.1760 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-391-3041, 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

3946A020

NSN: 2805-00-391-3041
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)

SPECIFICATIONS

material	STEEL OVERALL
ring_style	CONCENTRIC
joint_style	VERTICAL JOINT
overall_width	0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN
surface_treatment	CHROMIUM OUTSIDE PERIPHERY
radial_wall_thickness	0.1760 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN
bore_diameter_oversize	0.020 INCHES IN
standard_bore_diameter	4.625 INCHES IN
cross-sectional_shape_style	STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
oil_passage_type_and_quantity	10 SLOT HORIZONTALLY THROUGH RING
NSN	2805-00-391-3041

COMPONENT DIAGRAM

KEY FEATURES

•

BORE DIAMETER OVERSIZE: 0.020 INCHES IN

•

CROSS-SECTIONAL SHAPE STYLE: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL

•

JOINT STYLE: VERTICAL JOINT

•

OIL PASSAGE TYPE AND QUANTITY: 1 GROOVE OUTSIDE PERIPHERY

•

RADIAL WALL THICKNESS: 0.1760 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN

•

RING STYLE: CONCENTRIC

TECHNICAL CHARACTERISTICS

BORE DIAMETER OVERSIZE	0.020 INCHES IN
OVERALL WIDTH	0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE	STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
JOINT STYLE	VERTICAL JOINT
OIL PASSAGE TYPE AND QUANTITY	1 GROOVE OUTSIDE PERIPHERY
OIL PASSAGE TYPE AND QUANTITY	10 SLOT HORIZONTALLY THROUGH RING
RADIAL WALL THICKNESS	0.1760 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN
RING STYLE	CONCENTRIC
SURFACE TREATMENT	CHROMIUM OUTSIDE PERIPHERY
STANDARD BORE DIAMETER	4.625 INCHES IN

OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components

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

2805-00-010-2959 2805-00-066-3426 2805-00-326-0797 2805-00-395-7778 2805-00-422-9321 2805-00-447-9114 2805-00-448-0786 2805-00-561-9463

SUBSTITUTES & CROSS-REFERENCES 1

HB527-020Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3946A020?

3946A020 is a RING,PISTON.

What parts can replace 3946A020?

There is 1 known substitute for 3946A020: HB527-020. Substitute compatibility should be verified for your specific system.

What is the NSN for 3946A020?

3946A020 is cataloged in the U.S. Government catalog under NSN 2805-00-391-3041. This indicates validated use in U.S. government and defense supply chains.

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3946A020 — RING,PISTON

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