Model: 50399B6

Internal Wrenching Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.309 inches and 0.340 inches

Fastener Length

Between 0.469 inches and 0.500 inches

Head Style

Bevel-conical

Head Diameter

Between 0.245 inches and 0.250 inches

Head Height

Between 0.134 inches and 0.138 inches

Internal Drive Style

Hexagon

Thread Diameter

0.138 inches

Width Across Flats

Between 0.094 inches and 0.095 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

170000 pounds per square inch

Part Name Assigned By Controlling Agency

Navy special project

Material

Stainless steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 type 1 cl 3 federal specification single treatment response

Thread Series Designator

Unc

NSN

5306-01-093-3474

Part Number

50399B6

Description

Bolt,internal Wrenching

CAGE

56878

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 50399B6 NSN 5306-01-093-3474

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06666

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

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:

Construction Materials

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment