Model: 6661687-1

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.889 inches

Fastener Length

Between 0.969 inches and 1.031 inches

Head Style

Flat chamfer

Head Diameter

Between 0.431 inches and 0.437 inches

Head Height

Between 0.152 inches and 0.156 inches

Locking Feature

Patch threads or pellet threads or strip threads

Internal Drive Style

Hexagon

Thread Diameter

0.3125 inches

Width Across Flats

Between 0.1562 inches and 0.1587 inches

Thready Qty Per Inch (tpi)

Material

Steel

Surface Treatment

Zinc and chromate or aluminum and chromate

Surface Treatment Specification

Mil-c-87115, class 1 military specification 1st treatment response or mil-c-83488, class 3 military specification 2nd treatment response

Thread Series Designator

Unc

NSN

5305-01-369-4804

Part Number

6661687-1

Description

Screw,cap,socket Head

CAGE

53711

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 6661687-1 NSN 5305-01-369-4804

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

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:

573

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