4374

Piston Ring

NSN 2810-00-294-3523

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

UOM:

NIIN:

002943523

Product Technical Spec.

Cross Sectional Shape:

Straight face, double scraper, w/expander

Ring Style:

Concentric

Radial Wall Thickness:

Between 0.1840 inches and 0.1850 inches

Overall Width:

Between 0.1350 inches and 0.1450 inches

Standard Bore Diameter:

4.875 inches

Joint Style:

Vertical joint

Oil Passage Type And Quantity:

1 groove inside periphery

Oil Passage Type And Quantity:

1 groove outside periphery

Oil Passage Type And Quantity:

10 hole horizontally through ring

Material:

Iron

Material:

Steel expander

Surface Treatment:

Any acceptable

Fsc Application Data:

Engine, aircraft, reciprocating

NSN:

2810-00-294-3523

Item Name:

Ring Seal,piston

Cage Code:

79606

Cross Referenced Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

68338

Cage Code:

80254

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

67540

Cage Code:

80254

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

11459

FIIG:

A08400

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

126700

UFC:

64230

LTL:

85.0

LCL:

WCC:

593

TCC:

SHC:

ACC:

Equipment for Aircraft

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Pricing & Availability

Submit this form for current pricing and availability quote on part number 4374 and/or cross reference parts.

Definition Definition of approved item name (AIN): "Piston Ring Seal"

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.