Model: RST-255

Retaining Ring

Properties:

Cross Sectional Shape

Double oval

Inside Diameter

Between 2.407 inches and 2.432 inches

Casehardening Indicator

Not casehardened

Outside Diameter

Between 2.783 inches and 2.808 inches

Major Thickness

Between 0.075 inches and 0.081 inches

Ring Style

Spiral

Usage Design

External

Strength Rating

211000.0 pounds per square inch tensile

Material

Steel, federal standard 66, comp 1070 or steel, federal standard 66, comp 1072 or steel, federal standard 66, comp 1074 or steel, federal standard 66, comp 1075 or steel, federal standard 66, comp 1078 or steel, federal standard 66, comp 1080 or steel, federal standard 66, comp 1084 or steel, federal standard 66, comp 1085 or steel, federal standard 66, comp 1086 or steel, federal standard 66, comp 1090

Material

Steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 or steel comp 1070 or steel comp 1085 or steel comp 1086 or steel comp 1090

Material Specification

Fed standard 66, comp 1070 federal standard 1st material response and federal standard 66, comp 1072 federal standard 2nd material response and federal standard 66, comp 1074 federal standard 3rd material response and federal standard 66, comp 1075 federal standard 4th material response and federal standard 66, comp 1078 federal standard 5th material response and federal standard 66, comp 1080 federal standard 6th material response and federal standard 66, comp 1084 federal standard 7th material response and federal standard 66, comp 1085 federal standard 8th material response and federal standard 66, comp 1086 federal standard 9th material response and federal standard 66, comp 1090 federal standard 10th material response

NSN

5325-00-584-1145

Part Number

RST-255

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 RST-255 NSN 5325-00-584-1145

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:

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:

063520

UFC:

49770

LTL:

RATING VARIABLE

LCL:

WCC:

723

TCC:

SHC:

ACC:

Instruments/Radio

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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