Model: C9537-6-4

Internal Wrenching Bolt

Special Features:

Externally relieved portion 0.100in. Lg at tip of thread end; concentrichole through threaded portion to accomodate retaining clip-locking feature

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.840 inches

Fastener Length

1.210 inches

Head Style

Flat countersunk

Head Diameter

0.375 inches

Locking Feature

Slotted concentric hole

Internal Drive Style

Hexagon

End Application

An/ale-40

Thread Diameter

0.375 inches

Width Across Flats

0.141 inches

Features Provided

Retaining clip

Thready Qty Per Inch (tpi)

Countersink Angle

100.0 degrees

Externally Relieved Body Diameter Quantity

Material

Steel comp 4140 and steel comp 8740

Material

Steel comp 631 locking feature

Material Specification

Ams 5673 assn standard single material response locking feature

Material Specification

Mil-s-5626 military specification single material response or mil-s-6049 military specification single material response

Surface Treatment

Cadmium

Surface Treatment

Passivate locking feature

Surface Treatment Specification

Qq-p-35 federal specification single treatment response locking feature

Surface Treatment Specification

Qq-p-416, type 2, class 2 federal specification single treatment response

Thread Series Designator

Unf

NSN

5306-01-053-9319

Part Number

C9537-6-4

Description

Bolt,internal Wrenching

CAGE

81755

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 C9537-6-4 NSN 5306-01-053-9319

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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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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