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
Print Back
THREAD: AS8879 Class-3A
  1. MATERIALS:
    • Fitting: 6AI-4V titanium per AMS4928, AMS4965 or AMS4967, 130 KSI UTS MIN.
    • Lockring: A286 cres per AMS5731, AMS5732, AMS5734 or AMS5737, 34-40 HRC.
  2. FINISH:
    • Fitting: Anodic treatment per AMS2488, Type 2.
    • Lockring: Passivate per AMS2700, Type 2.
Unit of Measure

Specifications

Tube OD (REF)

 N/A 0.250

A Thread AS8879 Class-3A

 N/A 0.4375-20 UNJF

B Thread AS8879 Class-3A

 N/A 1.3125-18 UNJEF

C (± .005)

 N/A 1.782

D (± .005)

 N/A 1.057

E (+.005/-.002)

 N/A 1.225

F (MIN)

 N/A 1.379

G (REF)

 N/A 1.466

H (+.010/-.005)

 N/A 1.028

J (+.000/-.015)

 N/A 0.569

K (+.010/-.005)

 N/A 0.157

L (± .007)

 N/A 0.240

O-Ring Size (REF)

 N/A AS568-123

Port PS10035(AS1300)

 N/A PS10035-20

N (MAX)

 N/A 0.140

P (± .020)

 N/A 0.821

Porting Tool No.

 N/A RPT20

O-Ring Installation Tool Number

 N/A ORT1312

Lockring Drive Tool Part Number

 N/A RF9820DEK

Removal Tool Part Number

 N/A RF20LPDE

Tools

Wrench Part Number

 N/A RF6920W

Engineering information

N/A ENGINEERING INFORMATION:
a. THESE PARTS ARE PRIMARILY DESIGNED FOR USE IN 4000 PSI HYDRAULIC WORKING PRESSURE SYSTEMS (SAE PROCUREMENT SPECIFICATION NUMBER AS4841) COMPATIBLE WITH TITANIUM.
b. THESE PARTS PROVIDE SEMI-PERMANENT MALE ADAPTER INSTALLATIONS IN VALVE AND CYLINDER BODIES, MANIFOLD ETC...
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 METHOD DESCRIBED IN HFS RFK9800 AND RFK9900 SERIES CATALOG.
e. "N" AND "P" STAND-OFF DIMENSIONS ARE FOR DESIGN PURPOSES ONLY. DO NOT USE AS INSTALLATION DATA.
f. 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
3. LOCKRING RETAINED ON ADAPTER BY CONTROLLED INTERFERENCE FIT. LOCKRING CAPTIVATED .005-.015 FROM FLANGE CHAMFER.
4. SEALING SURFACE: NO VISIBLE DEFECTS. TO BE PROTECTED FOR SHIPMENT. TAKE CARE IN HANDLING.
5. THIS PART IS USED IN CONJUNCTION WITH AN O-RING. O-RING SIZE PER AS568.
6. FITTING TUBE END PER AS4395 STYLE "E" FOR TUBE SIZE SPECIFIED.
7. THREAD CHAMFER ANGLES: 45°±5°, 4 PLACES.
8. IDENTIFICATION:

  • MARK AT LOCATION SHOWN PER AS478 METHOD 2 OR 15, MANUFACTURER'S NAME, TRADEMARK OR CAGE CODE.

  • MARK PER AS478 METHOD 35D. NAME, TRADEMARK OR CAGE CODE, AND PART NUMBER.


    • 9. ALL MACHINED SURFACES SHALL BE SMOOTH TO 125 MICROINCHES Ra, SERRATION 250 MICROINCHES Ra AND SEALING SURFACES 63 MICROINCHES Ra PER ASME B46.1.
    10. PROCUREMENT SPECIFICATION: AS4841 EXCEPT AS SPECIFIED ON THIS DRAWING.