Howmet Fastening Systems
Howmet Fastening Systems
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THREAD: AS8879 Class-3A
  1. MATERIALS:
    • Fitting: Cres, A286 per AMS5731, AMS5732, AMS5734 or AMS5737, 34 HRC min.
    • Lockring: Cres, A286 per AMS5731, AMS5732, AMS5734 or AMS5737, 34-40 HRC.
  2. FINISH:
    • Fitting: passivate per AMS2700, plus everlube 811R inorganic solid film lubricant on all surfaces except none in flow hole.
    • Lockring: passivate per AMS2700, Type 2.
Unit of Measure

Specifications

Tube OD

 N/A 0.188 Inch

A Thread AS8879 Class-3A

 N/A 0.3750-28 UNJS Inch

B Thread AS8879 Class-3A

 N/A 0.2500-28 UNJF Inch

C Dia.( ± .005)

 N/A 0.468 Inch

D Dia.

 N/A 0.323-0.329

E Dia.

 N/A 0.122-0.128 Inch

F Dia. (+.005/-.002)

 N/A 0.186 Inch

G Dia. Min

 N/A 0.278 Inch

H Dia.

 N/A 0.349 Inch

J Dia. (+.010/-.005)

 N/A 0.550 Inch

K (+.000/-.015)

 N/A 0.355 Inch

L (+.010/-.005)

 N/A 0.125 Inch

M ( ± .007)

 N/A 0.192 Inch

N No. of Teeth

 N/A 26.000

O-Ring Size

 N/A AS568-008

Weight

 N/A 1.67 lbs/1000 pcs

SAE Port

N/A AS1300-03

AFS Port

 N/A PS10035-03

P Max

 N/A 0.124 Inch

R( ± .020)

 N/A 0.389 Inch

Porting Tool No.

 N/A RPT03

Basic Broach Tool Impact Type

 N/A RFOPB5003

O-Ring Installation Tool Number

 N/A ORT250

Combination Wrench and Drive Tool

 N/A RF5003DW

Lockring Removal Tool Number

 N/A RF03LPDE

Engineering information

N/A

  1. These parts are primarily designed for use in 4000 PSI hydraulic working pressure systems (military procurement specification number AS85720, Type II) Compatible with stainless steel.
  2. These parts provide semi-permanent male adapter installations in valve and cylinder bodies, manifolds etc ...
  3. Serrated lockring prevents rotation when mating lines are attached or removed.

Installation information

N/A

  1. "P" and „R" stand-off dimensions are for design purposes only. Do not use as installation data.
  2. This dimension meets the minimum requirements of military procurement specification number AS85720/1, except size 02 .
  3. O-rings must be specified separately and shall be selected based on system fluid and temperature and are not supplied by HFS.
  4. Adapters to be installed per SAE Standard AS1301 into Boss cavities per SAE AS1300.

Notes

N/A Unless otherwise specified

  1. Lockring retained on adapter by controlled interference fit.
  2. Sealing surface: no visible defects. To be protected for shipment.
  3. O-ring dash numbers shown conform to AS568 uniform dash numbering system.
  4. Identification
      a. Mark at location shown per AS478, method 2 or 15. Manufacturer's name, trademark or cage code.
      b. Bag and tag per AS478, method 35D. Manufacturer's name, trademark or cage code, customer part number if applicable, HFS part number.
  5. All machined surfaces shall be smooth to 125 microinches Ra max, Serration 250 microinches Ra max, sealing surfaces 63 microinches Ra max and as noted per ASME B46.1.