Model: 5548129

Thumbscrew

Special Features:

Internal concentric hole 4.500 in.Lg; dia. 1.625 in., counterbore .880 in.Lg. Dia. 1.000, npt 1/2 in.

Properties:

Thread Direction

Right-hand

Fastener Length

5.120 inches

Head Style

Knurled no. 1

Head Diameter

3.620 inches

Head Height

0.260 inches

Nonstandard Thread Pitch Diameter

+2.2250/+2.5050 inches

Color

Black

Material

Aluminum alloy 6061

Material Specification

Qq-a-225/8 federal specification single material response or qq-a-200/8 federal specification single material response

Surface Treatment

Dichromate

Thread Series Designator

Buttress

NSN

5305-01-353-6878

Part Number

5548129

Description

Thumbscrew

CAGE

53711

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part 5548129 NSN 5305-01-353-6878

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06673

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7616106000
SITC: 69440
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Threaded fasteners of aluminum