Model: 3257-05-03

Assembled Washer Screw

Special Features:

Color gray federal standard 595 no. 36231, rubber cushion bonded to washer

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.361 inches and 0.423 inches

Fastener Length

0.500 inches

Head Style

Round

Head Diameter

0.260 inches

Head Height

0.103 inches

Washer Quantity

Internal Drive Style

Cross recess type 1

Thread Diameter

0.138 inches

Thready Qty Per Inch (tpi)

Primary Washer Outside Diameter

0.360 inches

Primary Washer Style

Flat

Primary Washer Material Thickness

0.053 inches

Material

Steel comp 1010 or steel comp 1020

Surface Treatment

Cadmium and paint

Surface Treatment Specification

Qq-p-416 type 1 cl 3 federal specification all treatment responses

Thread Series Designator

Unc

NSN

5305-01-014-8469

Part Number

3257-05-03

Description

Screw,assembled Washer

CAGE

82227

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part 3257-05-03 NSN 5305-01-014-8469

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06660

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: 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