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THREAD: AS8879
MATERIAL:
  • Nut - A286 corrosion resistant steel per AMS5525, AMS5731 or AMS5734 (UNS S66286).
  • Basket - A286 corrosion resistant steel per AMS5525 (UNS S66286).
HEAT TREAT: After forming, precipitation heat treated to hardness not to exceed Rc 44 max.
FINISH:
  • Nut - Silver plate per AMS2411, on threads only. -3 size may have optional coverage on c'sink. -08 thru -5 sizes may have optional coverage in c'bore to .030 max. depth.
  • Basket - Passivate per AMS2700.
PERFORMANCE: AS4393, except axial tensile strength as tabulated.
FLOATABILITY: .030 minimum radially from centered position.
NOTES:
  1. Dimensions apply after plating.
  2. Unless otherwise specified, all surfaces 125 microinches.
Unit of Measure

A - MAX

N/A 1.396

C

N/A 0.505-0.495

D - MIN

N/A 0.317

H - MAX

N/A 0.328

J

N/A 0.314-0.310

K

N/A 0.103-0.098

M - MIN

N/A 0.062

P

N/A 0.392-0.372

R - MIN

N/A 0.125

V - MAX

N/A 0.045

W

N/A 0.641-0.412

Axial Tensile Strength (LBS. MIN)

N/A 7390

Approx. Weight (LBS/100)

N/A 1.440

SAE Part Number

N/A AS3479-05

Thread Type

N/A Unified

Configuration 1

N/A One Lug

Configuration 2

N/A Floating

Lock

N/A Crimp Lock

Simplified Material

N/A CRES

Strength

N/A 125KSI - 900Mpa

Temperature

N/A 1200°F - 650°C

Thread

N/A 0.3125-24 UNJF-3B