Model: R252

Valve Spring Retainer Lock

Properties:

Casehardening Indicator

Not casehardened

Overall Height

Between 0.495 inches and 0.505 inches

Thread Provision

Unthreaded

Largest Inside Diameter

Between 0.493 inches and 0.497 inches

Largest Outside Diameter

Between 0.713 inches and 0.717 inches

First Groove Width

Between 0.020 inches and 0.040 inches

Second Groove Width

Between 0.020 inches and 0.040 inches

Minimum Inside Diameter

0.431 inches

Distance Between First And Second Groove Centers

Between 0.143 inches and 0.167 inches

Distance From Bottom To First Groove Center

Between 0.167 inches and 0.178 inches

Outside Included Angle In Deg

13.7

Material

Steel

Material

Steel

Style Designator

Straight bore w/two grooves-lower outside radius

Fsc Application Data

Cylinder head and valves group, diesel engine

NSN

2815-00-371-7247

Part Number

R252

Description

Lock,valve Spring Retainer

CAGE

59875

Part R252 NSN 2815-00-371-7247

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15883

FIIG:

T267-H

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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