Howmet Fastening Systems
Howmet Fastening Systems
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Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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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 0.188

A Thread AS8879 Class-3A

 N/A 0.3750-24 UNJF

B Thread AS8879 Class-3A

 N/A 0.3125-24 UNJF

C (± .005)

 N/A 0.514

D (± .005)

 N/A 0.185

E (+.005/-.002)

 N/A 0.239

F (MIN)

 N/A 0.331

G (REF)

 N/A 0.400

H (+.010/-.005)

 N/A 0.897

J (+.000/-.015)

 N/A 0.355

K (+.010/-.005)

 N/A 0.125

L (± .007)

 N/A 0.192

O-Ring Size (REF)

 N/A AS568-010

Port PS10035(AS1300)

 N/A PS10035-04

N (MAX)

 N/A 0.124

P (± .020)

 N/A 0.732

Porting Tool No.

 N/A RPT04

O-Ring Installation Tool Number

 N/A ORT312

Lockring Drive Tool Part Number

 N/A RF9804DEK

Removal Tool Part Number

 N/A RF04LPDE

Tools

Wrench Part Number

 N/A RF6904W

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.