Page 388 - ParkerBrassCatalog2010

Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
Catalog 3501E General Technical
N8
N
Abbreviation Description Applicable Std.
Metric Threads
M Metric Screw Threads — M profle ISO 261
ANSI B1.13M
FED-STD-H28/21
M — Keg Metric Taper Threads (mainly used in Germany) DIN 158
British Standard
Pipe Threads
R (BSPT) British Standard Taper Pipe Threads, External BS 21
ISO 7/1
Rc (BSPT) British Standard Taper Pipe Threads, Internal BS 21
ISO 7/1
Rp or G (BSPP) British Standard Pipe (Parallel) Threads BS 2779
ISO 228/1
Japanese Standard
Pipe Threads
PF1) JIS Parallel Pipe Threads JIS B202
ISO 228/1
PT1) JIS Taper Pipe Threads JIS B203
ISO 7/1
PS JIS Parallel Internal Pipe Threads (to mate with PT threads) JIS B203
Table A48 (Cont'd) — Thread Designations and Standards for Threads Used in Fluid Connectors
1) PF and PT threads are functionally interchangeable with BSPP and BSPT threads, respectively.
These are old designations. They are being replaced with G (for PF) and R and Rc (for PT) as documents are revised.
Straight Thread Size Comparison Chart
.D.OebuT
8/1 61/3 4/1 61/5 8/3 61/7 2/1 8/5 4/3 8/7 1
54EAS° deralF 61/5
42-
8/3
42-
61/7
02-
2/1
02-
8/5
81-
61/11
61-
4/3
61-
8/7
41-
61/1-1
41-
4/1-1
21- -
detrevnI
deralF
61/5
82-
8/3
42-
61/7
42-
2/1
02-
8/5
81-
61/11
81-
4/3
81-
8/7
81-
61/1-1
61-
61/3-1
61- -
ATN/ekarBriA- - 61/7
42- - 23/71
42- - 61/11
02-
61/31
81-
1
81- - 4/11
61-
/.pmoC.dtS
ngilA-sserpmoC
61/5
42-
8/3
42-
61/7
42-
2/1
42-
61/9
42-
8/5
42-
61/11
02-
61/31
81-
1
81-
8/1-1
81-
4/11
81-
etiT-yloP 61/5
42-
8/3
42-
8/3
42-
61/7
42-
2/1
42- - 61/11
02- - - - -
koL-arbiV 8/3
42-
61/7
42-
2/1
42-
61/9
42-
8/5
42- - 61/31
81-
1
81-
8/1-1
81- - -
sevlaVllaB015V- - 61/7
02- - 61/9
81- - 4/3
61-
8/7
41-
61/1-1
21- - 61/5-1
21-
sseleralFytuD-iH
sgnittiFebuT
61/5
42-
8/3
42-
61/7
42-
2/1
02-
61/9
02- - 61/11
61-
8/7
81- - - -