Model: 16990-6F-32C

Internal Wrenching Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.630 inches

Fastener Length

Between 1.960 inches and 2.000 inches

Head Style

Flat countersunk

Head Diameter

Between 0.747 inches and 0.753 inches

Internal Drive Style

Hexagon

Thread Diameter

0.375 inches

Width Across Flats

0.219 inches

Thready Qty Per Inch (tpi)

Countersink Angle

Between 80.0 degrees and 82.0 degrees

Material

Steel

Material Specification

66 federal standard all material responses

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 federal specification 1st treatment response or mil-c-81562, type ii, class 3 military specification 2nd treatment response

Thread Series Designator

Unf

NSN

5306-01-383-5981

Part Number

16990-6F-32C

Description

Bolt,internal Wrenching

CAGE

56878

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 16990-6F-32C NSN 5306-01-383-5981

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06666

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:

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