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 0.312

A Thread AS8879 Class-3A

 N/A 0.5000-20 UNJF

B Thread AS8879 Class-3A

 N/A 0.8125-20 UNJEF

C (± .005)

 N/A 1.170

D (+.000/-.006)

 N/A 0.237

E (± .005)

 N/A 0.633

F (+.005/-.002)

 N/A 0.737

G (MIN)

 N/A 0.891

H (REF)

 N/A 0.981

J (± .005)

 N/A 0.915

K (+.000/-.015)

 N/A 0.527

L(+.010/-.005)

 N/A 0.157

M (±.007)

 N/A 0.220

O-Ring Size (REF)

 N/A AS568-116

Port PS10035

 N/A PS10035-12

N (MAX)

 N/A 0.140

P (± .0175)

 N/A 0.7350

Porting Tool No.

 N/A RPT12

O-Ring Installation Tool Number

 N/A ORT812

Lockring Drive Tool Part Number

 N/A RF9812DEK

Removal Tool Part Number

 N/A RF12LPDE

Tools

Wrench Part Number

 N/A RF6912W

Engineering information

N/A ENGINEERING INFORMATION:
a. THESE PARTS ARE PRIMARILY DESIGNED FOR USE IN 4000 PSI HYDRAULIC WORKING PRESSURE SYSTEMS (SAE STANDARD AS18280) 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 HFS RFK9900 SERIES CATALOG OR METHODS DESCRIBED IN SAE STANDARD AS1301.
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: DO NOT MAR, TAKE CARE IN HANDLING.
5. O-RING DASH NUMBERS CONFORM TO AS568 UNIFORM DASH NUMBERING SYSTEM.
6. THIS END PER AS4375 OR AS33514 EXCEPT TUBE END SIZE -14 PER BOEING AIRCRAFT CO. SPECIFICATION BACD2068, STYLE "E".
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.

  • BAG AND TAG PER AS478, METHOD 35D. MANUFACTURER'S NAME, TRADEMARK OR CAGE CODE, CUSTOMER PART NUMBER IF APPLICABLE, HFS PART NUMBER.


    • 9. ALL MACHINED SURFACES SHALL BE SMOOTH TO 125 MICROINCHES Ra, SERRATION 250 MICROINCHES Ra,
    SEALING SURFACES 63 MICROINCHES Ra PER ASME B46.1.
    10. PROCUREMENT SPECIFICATION: AS18280 EXCEPT AS SPECIFIED ON THIS CATALOG.