Model: 53-66 TABLE 1 ITEM 14

Hexagon Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Hexagon

Nut Height

Between 0.208 inches and 0.225 inches

Width Across Flats

Between 0.545 inches and 0.562 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.312 inches

Bearing Surface Type

Chamfered

Material

Copper alloy 462 or copper alloy 464 or copper alloy 360

Material Specification

Qq-b-637 federal specification 1st material response or qq-b-637 federal specification 2nd material response or qq-b-626 federal specification 3rd material response

Surface Treatment

Nickel

Surface Treatment Specification

Qq-n-290, cl 2 federal specification single treatment response

Nondefinitive Specification/std Data

2 type and 13 style

NSN

5310-01-268-9797

Part Number

53-66 TABLE 1 ITEM 14

Description

Nut,plain,hexagon

CAGE

K0851

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 53-66 TABLE 1 ITEM 14 NSN 5310-01-268-9797

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01857

FIIG:

A021A0

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:

093470

UFC:

48940

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415290000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper screws, nuts, bolts, rivets, and other fasteners not threaded