Howmet Fastening Systems
Howmet Fastening Systems
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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

    SAE Ident. Number

    		 N/A AS4099-04

    (Tube OD)

    		 N/A 0.250

    A Thread AS8879 Class-3A

    		 N/A 0.4375-20 UNJF

    B Thread AS8879 Class-3A

    		 N/A 0.3125-24 UNJF

    C (± .005)

    		 N/A 0.514

    D

    		 N/A 0.169-0.175

    E (+.005/-.002)

    		 N/A 0.239

    F (MIN)

    		 N/A 0.331

    G

    		 N/A 0.400

    H (± .005)

    		 N/A 0.752

    J (+.000/-.015)

    		 N/A 0.355

    K (+.010/-.005)

    		 N/A 0.125

    L (± .007)

    		 N/A 0.192

    M (No. of Teeth)

    		 N/A 30

    O-Ring Size

    		 N/A AS568-010

    Weight lbs/ea

    		 N/A 0.014

    HFS port PS10035

    		 N/A PS 10035-04

    SAE Port AS1300

    		 N/A AS1300-04

    N (MAX)

    		 N/A 0.124

    P (± .0175)

    		 N/A 0.5870

    Porting Tool No.

    		 N/A RPT04

    Chip Removal Tool Number

    		 N/A RF04CRP

    Basic Broach Tool Non-Impact Type

    		 N/A RFOPB5004HDB

    O-Ring Installation Tool Number

    		 N/A ORT312

    Combination Wrench and Drive Tool

    		 N/A RF9804DW

    Lockring Removal Tool Number

    		 N/A RF04LPDE

    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, MANIFOLDS 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 METHODS DESCRIBED IN HFS RFK9900 CATALOG OR SAE STANDARD AS1301.
    e. "N" AND "P" STAND-OFF DIMENSIONS ARE FOR DESIGN PURPOSES ONLY. DO NOT USE AS INSTALLATION DATA.
    f. THIS DIMENSION MEETS THE MINIMUM STAND OFF REQUIREMENTS OF AS4375 OR AS33514, STYLE "E" EXCEPT SIZE-14.
    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 NOTE: UNLESS OTHERWISE SPECIFIED
    3. LOCKRING RETAINED ON ADAPTER BY CONTROLLED INTERFERENCE FIT.
    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. IDENTIFICATION:

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

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


    5. 7. ALL MACHINED SURFACES SHALL BE SMOOTH TO 125 MICROINCHES Ra, SERRATION 250 MICROINCHES Ra AND SEALING SURFACES 63 MICROINCHES Ra PER ASME B46.1. 8. Diam. "D" FOR DASH 04 IS .184-.190 ON AS4375 OR AS33514 END AND REDUCED TO diam. "D" PER THIS STANDARD ON OPPOSITE END.
    9. DASH 14 FITTING TUBE END SIDE PER BOEING AIRCRAFT COMPANY SPECIFICATION BACD 2068, STYLE "E".
    10. PROCUREMENT SPECIFICATION: AS18280 EXCEPT AS SPECIFIED ON THIS CATALOG.