Model: 657488

Tee Head Bolt

Special Features:

Shoulder 0.127 in. Min, 0.132 in. Max lg from bearing surface of head by 0.309 in. Min, 0.311 in. Max dia

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.348 inches and 0.393 inches

Fastener Length

Between 0.552 inches and 0.572 inches

Head Style

Tee no. 3

Head Height

Between 0.080 inches and 0.100 inches

Head Length

Between 0.490 inches and 0.510 inches

Width Between Flats

Between 0.340 inches and 0.360 inches

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Hardness Rating

42.0 rockwell c and 46.0 rockwell c

Material

Steel

Material Specification

Ams 6304 assn standard single material response

Surface Treatment

Nickel and cadmium

Surface Treatment Specification

Ams 2416 assn standard all treatment responses

Thread Series Designator

Unjf

NSN

5306-00-410-6938

Part Number

657488

Description

Bolt,tee Head

CAGE

80539

An externally threaded fastener whose threaded portion is of one nominal diameter and with a head specially designed to fit in a slot and hold against turning.

Part 657488 NSN 5306-00-410-6938

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06668

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:

573

TCC:

SHC:

ACC:

Equipment for Aircraft

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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