M1904U — RING,PISTON

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

M1904U: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, ring_style: CONCENTRIC, joint_style: INTERLOCKING JOINT, overall_width: 0.0940 INCHES NOMINAL IN, radial_wall_thickness: 0.1270 INCHES NOMINAL IN, standard_bore_diameter: 3.625 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-340-7033, 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

M1904U

NSN: 2815-00-340-7033
FSC: 2815 — Diesel Engines and Components
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)

SPECIFICATIONS

material	STEEL OVERALL
ring_style	CONCENTRIC
joint_style	INTERLOCKING JOINT
overall_width	0.0940 INCHES NOMINAL IN
radial_wall_thickness	0.1270 INCHES NOMINAL IN
standard_bore_diameter	3.625 INCHES IN
cross-sectional_shape_style	PLAIN RECTANGULAR, STRAIGHT FACE
oil_passage_type_and_quantity	6 HOLE VERTICALLY THROUGH RING
NSN	2815-00-340-7033

COMPONENT DIAGRAM

KEY FEATURES

•

CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE

•

JOINT STYLE: INTERLOCKING JOINT

•

OIL PASSAGE TYPE AND QUANTITY: 6 HOLE VERTICALLY THROUGH RING

•

RADIAL WALL THICKNESS: 0.1270 INCHES NOMINAL IN

•

RING STYLE: CONCENTRIC

•

STANDARD BORE DIAMETER: 3.625 INCHES IN

•

MATERIAL: STEEL OVERALL

TECHNICAL CHARACTERISTICS

OVERALL WIDTH	0.0940 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE	PLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLE	INTERLOCKING JOINT
OIL PASSAGE TYPE AND QUANTITY	6 HOLE VERTICALLY THROUGH RING
RADIAL WALL THICKNESS	0.1270 INCHES NOMINAL IN
RING STYLE	CONCENTRIC
STANDARD BORE DIAMETER	3.625 INCHES IN
MATERIAL	STEEL OVERALL

OTHER ITEMS IN FSC 2815 — Diesel Engines and Components

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

2815-00-011-9099 2815-00-017-1875 2815-00-024-4185 2815-00-033-1482 2815-00-036-5350 2815-00-179-7630 2815-00-346-4639 2815-00-592-5308

SUBSTITUTES & CROSS-REFERENCES 2

D32034Reference document

Same NSN cross-reference

Reference document — Secondary reference

1341403C1Same 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 M1904U?

M1904U is a RING,PISTON.

What parts can replace M1904U?

There are 2 known substitutes for M1904U: D32034, 1341403C1. Substitute compatibility should be verified for your specific system.

What is the NSN for M1904U?

M1904U is cataloged in the U.S. Government catalog under NSN 2815-00-340-7033. This indicates validated use in U.S. government and defense supply chains.

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