Model: 120-225C08R06

Close Tolerance Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.398 inches

Fastener Length

0.406 inches

Head Style

Round extended washer

Head Diameter

0.312 inches

Head Height

Between 0.082 inches and 0.092 inches

Extended Washer Diameter

0.375 inches

Extended Washer Thickness

Between 0.023 inches and 0.028 inches

Grip Diameter

Between 0.1625 inches and 0.1635 inches

Single Shear Strength

95000 pounds per square inch

Internal Drive Style

Cruciform ribbed

End Application

Navy aircraft

Thread Diameter

0.164 inches

Grip Length

0.032 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

2170 pounds per square inch

Surface Finish

32.0 microinches bearing surface of head

Part Name Assigned By Controlling Agency

Screw, washer head, close tolerance, long thread, 95ksi fsu

Material

Stainless steel

Material Specification

A286 iaw ams5731, ams5732, ams5737 or ams5853 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Ams-qq-p-35 assn standard single treatment response

Thread Series Designator

Unjc

NSN

5305-01-612-6086

Part Number

120-225C08R06

Description

Screw,close Tolerance

CAGE

56878

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 120-225C08R06 NSN 5305-01-612-6086

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:

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