Model: NAS1990-04P7K

Machine Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.388 inches and 0.438 inches

Fastener Length

Between 0.407 inches and 0.438 inches

Head Style

Pan

Head Diameter

Between 0.205 inches and 0.219 inches

Head Height

Between 0.070 inches and 0.080 inches

Locking Feature

Pellet or strip

Internal Drive Style

Cross recess type 1

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Hardness Rating

Between 36.0 rockwell c and 40.0 rockwell c

Screw Material

Steel comp 4140 or steel comp 4340 or steel comp 8740

Locking Feature Material

Plastic polychlorotrifluoroethylene

Screw Material Specification

Mil-s-5626 military specification 1st material response or mil-s-8844 military specification 2nd material response or ams 6414 assn standard 2nd material response or mil-s-6049 military specification 3rd material response

Locking Feature Material Specification

Ams 3650 assn standard single material response

Screw Surface Treatment

Cadmium and chromate

Screw Surface Treatment Specification

Qq-p-416, type 2, class 2 federal specification all treatment responses

Bearing Surface Of Head Surface Finish

32.0 microinches

Thread Surface Finish

32.0 microinches

Thread Series Designator

Unjc

Specification Data

80205-nas1190 professional/industrial association standard

NSN

5305-01-059-0192

Part Number

NAS1990-04P7K

Description

Screw,machine

CAGE

56357

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part NAS1990-04P7K NSN 5305-01-059-0192

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06657

FIIG:

A500D0

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:

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