Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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THREADS:
MA1370 -4g6g
MA1370 -4h6h
  1. MATERIALS:
    • Fitting - 6AI-4V titanium per AMS4928, AMS4965 or AMS4967, 965 MPa UTS MIN.
    • Lockring: A286 cres per AMS5731 or AMS5734, 34-40 HRC.
  2. FINISH:
    • Fitting: Anodic treatment per AMS2488, Type 2.
    • Lockring: Passivate per AMS2700, Type 2 and PTFE coating (orange bright color).
Unit of Measure

Specifications

Tube OD (REF)

 N/A 20.000

A Thread
MA1370
-4g6g

 N/A MJ27x1.5

B Thread
MA1370
-4h6h

 N/A MJ22x1.5

C (± .09)

 N/A 30.200

D

 N/A 18.00-18.30

E (+.20/-0)

 N/A 15.700

F (+0.15/-0.05)

 N/A 17.700

G (REF)

 N/A 24.720

H (MIN)

 N/A 22.380

K (± .20)

 N/A 23.250

L (+.50/-0)

 N/A 15.100

M (+.15/-.10)

 N/A 3.000

N (± .40)

 N/A 15.500

P (± .20)

 N/A 7.000

O-Ring Size (REF)

 N/A A0190

Adapter weight kg/100 pcs approx

 N/A 4.460

Port PS10054

 N/A PS10054-231

R (± .50)

 N/A 15.600

S (MAX)

 N/A 4.100

Porting Tool No.

 N/A RPTM231

Basic Broach Tool Impact Type

 N/A RFMOPB231

O-Ring Installation Tool Number

 N/A ORTM2215

Combination Wrench and Drive Tool

 N/A RFM231-2715DW

Lockring Removal Tool Number

 N/A RFM231LPDE

Engineering information

N/A ENGINEERING INFORMATION:
a. THESE PARTS ARE PRIMARILY DESIGNED FOR USE IN 56000 kPa HYDRAULIC WORKING PRESSURE SYSTEMS (168000 KPa BURST PRESSURE) 200° C MAX TEMPERATURE.
b. THESE PARTS PROVIDE SEMI-PERMANENT MALE ADAPTER INSTALLATIONS IN VALVE AND CYLINDER BODIES, MANIFOLDS ETC. WITH 140000 kPa SHEAR STRENGTH MINIMUM.
c. SERRATED LOCKRING PREVENTS ROTATION WHEN MATING LINES ARE ATTACHED OR REMOVED.

Installation information

N/A INSTALLATION INFORMATION:
d. ADAPTERS TO BE INSTALLED AND REMOVED PER HFS TECHNICAL SALES BULLETIN TSB85-0220.
e. "R" AND "S" STAND-OFF DIMENSIONS ARE FOR DESIGN PURPOSES ONLY. DO NOT USE AS INSTALLATION DATA.
f. THIS DIMENSION MEETS THE MINIMUM REQUIREMENTS OF AECMA STANDARD EN2604.
g. O-RINGS MUST BE SPECIFIED SEPARATELY AND SHALL BE SELECTED BASED ON SYSTEM FLUID AND TEMPERATURE AND ARE NOT SUPPLIED BY HFS.

Notes

N/A NOTES: UNLESS OTHERWISE SPECIFIED
2. LOCKRING RETAINED ON ADAPTER BY CONTROLLED INTERFERENCE FIT. THREE TEETH, APPROX 120° APART, REMOVED FROM THE LOCKRING EXTERNAL SERRATION FOR 56000 kPa IDENTIFICATION PURPOSE.
3. SEALING SURFACE: NO VISIBLE DEFECTS. TO BE PROTECTED FOR SHIPMENT. TAKE CARE IN HANDLING.
4. THIS PART IS USED IN CONJUNCTION WITH AN O-RING. O-RING SIZE PER MA2010 (IS03601/I SERIES A).
5. ALL INTERIOR PACKAGES SHALL BE MARKED PER AS478, METHOD 35 D AND SHALL ALSO BE DURABLY MARKED WITH THE COMPLETE HFS PART NUMBER.
6. SURFACE ROUGHNESS: MACHINED SURFACES SHALL BE SMOOTH TO 3.2 MICROMETER Ra, EXCEPT SERRATION 6.3 MICROMETER Ra AND SEALING SURFACES 1.6 MICROMETER Ra PER ASME B46.1.