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THREAD: AS8879
MATERIAL:
303 corrosion resistant steel per ASTM A194,
304 corrosion resistant steel per ASTM A493,
305 corrosion resistant steel per ASM5640, or A-286 corrosion resistant steel per ASTM A453.
FINISH: Silver plate per AMS 241. Threads shall show complete coverage. Silver on all other surfaces optional.
PERFORMANCE: NASM25027
APPLICATIONS: Temperature: 800°F
NOTES: Surface texture 125 microinches or better.
Unit of Measure

Specifications

B - MIN

 N/A 0.410

C - MIN

 N/A 0.482

D

 N/A 0.293-0.253 0.293 in

H

 N/A 0.328-0.240 0.328 in

S - MIN

 N/A 0.116

W

 N/A 0.439 in0.439-0.430

Axial Tensile Strength (LBS. MIN)

 N/A 3780

Approx. Weight (LBS/100)

 N/A 0.990

Thread Type

 N/A Unified

Configuration 1

 N/A Hex

Lock

 N/A Crimp Lock

Simplified Material

 N/A CRES

Strength

 N/A 125KSI - 900Mpa

Temperature

 N/A 800°F - 425°C

Thread

 N/A 0.2500-20 UNJC-3B

Part Family

 N/A H56