Model: 120-279N

Mater Aircraft Stud

Special Features:

Material: alloy steel - 4340 per ams6414 or 8740 per ams6322 or ams 6325 or ams 6327

Properties:

Overall Length

1.280 inches

Overall Height

Between 0.3160 inches and 0.3170 inches

Overall Diameter

Between 0.2930 inches and 0.2940 inches

Part Name Assigned By Controlling Agency

Stud, straight, vented, .3125-18 x .3125.24, 180 ksi, special

Material

Steel

Surface Treatment

Oxide

Special Test Features

Left side: 0.3125-18unjs per as8879 chamfer end, 0.739" min, right side: 0.3125-24unjf-3a 0.420" min, middle diameter 0.279" to 0.289"

Supplementary Features

Heat treatment: 180-200 ksi ultimate tensile strength per ams2759, finish: chemical black oxide per mil-dtl-13924

General Description

Pitch diameter: 0.2930" to 0.2940", pd lead thread: 0.2864" to 0.2884", minor diameter: 0.2616" to 0.2664"

Thread Size And Series/type Designator

0.3125-24 unjf

NSN

5307-01-552-9061

Part Number

120-279N

Description

Stud,aircraft,mater

CAGE

97499

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Equipment for Aircraft

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