Model: TX1026C4-9F

Close Tolerance Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.425 inches

Fastener Length

Between 0.9725 inches and 1.0025 inches

Head Style

Flat countersunk

Head Diameter

Between 0.470 inches and 0.477 inches

Spline Minor Diameter

Between 0.1570 inches and 0.1600 inches

Spline Major Diameter

Between 0.2195 inches and 0.2225 inches

Grip Diameter

Between 0.2485 inches and 0.2495 inches

Single Shear Strength

125000 pounds per square inch

Point Style

Flat

Internal Drive Style

Torx

End Application

F18 e/f

Thread Diameter

0.250 inches

Grip Length

Between 0.5525 inches and 0.5725 inches

Features Provided

Cetyl alcohol lubricant

Thready Qty Per Inch (tpi)

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Criticality Code Justification

Agav

Part Name Assigned By Controlling Agency

Bolt, 100 degrees tension head, gear drive recess

Material

Nickel alloy 718

Material Specification

Amc 5662, inconel 718 assn standard single material response

Surface Treatment

Aluminum and chromate

Surface Treatment Specification

Mil-c-83488, type ii, class 3 military specification all treatment responses

Thread Series Designator

Unjf

NSN

5305-01-485-5818

Part Number

TX1026C4-9F

Description

Screw,close Tolerance

CAGE

27624

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part TX1026C4-9F NSN 5305-01-485-5818

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29294

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:

096640

UFC:

50600

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 7508900000
SITC: 69975
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)