Model: KR-550S

Retaining Ring

Properties:

Cross Sectional Shape

Double oval

Inside Diameter

5.156 inches

Casehardening Indicator

Not casehardened

Outside Diameter

5.686 inches

Major Thickness

Between 0.068 inches and 0.076 inches

Ring Style

Spiral

Usage Design

Internal

Strength Rating

175000.0 pounds per square inch tensile

Material

Steel, mil-s-5059, type 302 or steel, ams 5688 or steel, qq-s-766, class 302

Material

Steel comp 302 or steel comp 302 or steel comp 302

Material Specification

Mil-s-5059, type 302 military specification 1st material response and ams 5688 assn standard 2nd material response and qq-s-766, class 302 federal specification 3rd material response

NSN

5325-01-274-1623

Part Number

KR-550S

Description

Ring,retaining

CAGE

80756

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes ring, connecting, round.

Part KR-550S NSN 5325-01-274-1623

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

07623

FIIG:

T252-G

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:

0.1000lbs

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

095190

UFC:

49790

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 9606100000
SITC: 89983
End Use: Finished textile supplies
NAICS: 339993
USDA: 1

Freight Class: Press-fasteners, snap-fasteners & press-studs & parts therefor