Model: LK21093-0409

Machine Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.121 inches and 0.210 inches

Fastener Length

Between 0.219 inches and 0.250 inches

Head Style

Flat countersunk

Head Diameter

Between 0.200 inches and 0.225 inches

Internal Drive Style

Cross recess type 1

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Screw Material

Steel

Screw Material Specification

Qq-s-637 federal specification single material response

Screw Surface Treatment

Cadmium and chromate

Screw Surface Treatment Specification

Qq-p-416 type 2 cl 3 federal specification single treatment response

Thread Series Designator

Unc

Nondefinitive Specification/std Data

3 type or 3c style

Departure From Cited Designator

As modified by locking feature

NSN

5305-00-115-3031

Part Number

LK21093-0409

Description

Screw,machine

CAGE

26304

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 LK21093-0409 NSN 5305-00-115-3031

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

End Items End applications NSN 5305-00-115-3031 is a component of

C-2a (reprocured) Aircraft
Lightweight 3d (an/tps-59) Radar Set
Mh-53e Helicopter
Ah-1w Advance Attack Helicopter
Sh-60f Carrier Based Asw Helicopter
Hh-60h Search And Rescue Helicopter
Hh-60j Uscg Search And Rescue Helicopter
Comm. Tech. (06m Jul83) (an/tsq-84) Control Center
Apx-72 Airborne Radar
Tam A26357 Telephone Set
005089183
Linear Electro-mechanical Actuator
001675539
Circuit Card Assembly
011384128
Cockpi Control Unit
012047687
Power Supply
010456061
Electrical-electronic Equipment Control Panel
010366886
Aircraft General Purpose Dispenser
010366886
Aircraft General Purpose Dispenser
012375871
Linear Electro-mechanical Actuator
013119617
Power Supply

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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