Model: 540-012-04

Piston Ring

Properties:

Cross Sectional Shape

Plain rectangular, straight face

Ring Style

Concentric

Radial Wall Thickness

Between 0.4310 inches and 0.4410 inches

Overall Width

0.3125 inches

Standard Bore Diameter

1.250 inches

Joint Style

Vertical joint

Material

Any acceptable

NSN

4310-00-796-4715

Part Number

540-012-04

Description

Ring,piston

CAGE

90031

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

Part 540-012-04 NSN 4310-00-796-4715

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

11459

FIIG:

A08400

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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Schedule B and Export

Schedule B: 8414902095
SITC: 74380
End Use: Industrial engines
NAICS: 333912
USDA: 1

Freight Class: Parts nesoi, of compressors other than refrigerating and air conditioning compressors