3946A — RING,PISTON

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3946A: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN, surface_treatment: CHROMIUM OVERALL, 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 2805-00-391-3040, 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

3946A

NSN: 2805-00-391-3040
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)

SPECIFICATIONS

material	IRON OVERALL
ring_style	CONCENTRIC
joint_style	VERTICAL JOINT
overall_width	0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN
surface_treatment	CHROMIUM OVERALL
radial_wall_thickness	0.1760 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM 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	2805-00-391-3040

COMPONENT DIAGRAM

KEY FEATURES

•

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

•

SURFACE TREATMENT: CHROMIUM OVERALL

TECHNICAL CHARACTERISTICS

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 OVERALL
STANDARD BORE DIAMETER	4.625 INCHES IN
MATERIAL	IRON OVERALL

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

HB527Reference 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 3946A?

3946A is a RING,PISTON.

What parts can replace 3946A?

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

What is the NSN for 3946A?

3946A is cataloged in the U.S. Government catalog under NSN 2805-00-391-3040. This indicates validated use in U.S. government and defense supply chains.

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3946A — RING,PISTON

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