Standard Symbols And Abbreviations. To Bs8888 Term Across Flats Assembly

STANDARD SYMBOLS AND ABBREVIATIONS. TO BS8888 Term

Abbreviation or Symbol

Across Flats

AF

Assembly

ASSY

Centres

CRS

Centre Line ..On View Centre line ..On Note

CL

Centre Of Gravity

CG

Chamfer of Chamferred..In a Note

CHAM

Cheese Head

CH HD

Countersunk/ Countersink

CSK

Countersunk Head

CSK HD

Counterbore

CBORE

Cylinder or Cylinderical

CYL

Diameter..in a note

DIA

Diameter..preceding a dimension Drawing

DRG

Equally Spaced

EQUI SP

External

EXT

Figure

FIG

Full Indicated Movement

FIM

Hexagon

HEX

Hexagon Head

HEX HD

Insulated or Insulation

INSUL

Internal

INT

Least Material Condition..In a Note

LMC

Least Material Condition..(Geom.Dim) Left hand

LH

Long

LG

Machine

MC

Material

MAT

Maximum

MAX

Maximum Material Condition..In a note

MMC

Maximum Material Condition..(Geom. tol) Minimum

MIN

Not to Scale (In a note and underlined

NTS

Number

NO.

Pattern Number

PATT NO.

Pitch Circle Diameter

PCD

Radius..In a note

RAD

Radius..Preceding a dimension

R

Reference

REF

Required

REQD

Right hand

RH

Round Head

RD HD

Screw of Screwed

SCR

Sheet (Drawing Number)

SH

Sketch (prefix to Drawing Number)

SK

Specification

SPEC

Spherical Radius..Preceding dim

SR

Spotface

SFACE

Square ..In a note

SQ

Square ..Preceding dim Standard

STD

Taper.. On Dia or Width Thread

THD

Thick

THK

Tolerance

TOL

Typically OR Typical

TYP

Undercut

UCUT

Volume

VOL