Model: 2503-78 ITEM 99

Round Self-locking Nut

Properties:

Thread Pitch Diameters

+0.6437/+0.6467 inches

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Drive Point Depth

Between 0.102 inches and 0.109 inches

Nut Style

Round

Nut Diameter

Between 1.110 inches and 1.125 inches

Nut Thickness

Between 0.334 inches and 0.354 inches

Drive Point Width

Between 0.105 inches and 0.135 inches

Drive Point Quantity

Thread Series

Uns

Thready Qty Per Inch (tpi)

Thread Size

0.664 inches

Material

Plastic polyamide locking insert

Material

Steel comp 1015 except insert or steel comp 1018 except insert or steel comp 1020 except insert or steel comp 1118 except insert or steel comp 1213 except insert or steel comp 1215 except insert

Material Specification

Aisi assn standard 2nd material response except insert

NSN

5310-01-022-9004

Part Number

2503-78 ITEM 99

Description

Nut,self-locking,round

CAGE

43689

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part 2503-78 ITEM 99 NSN 5310-01-022-9004

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15895

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:

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:

000000

UFC:

00000

LTL:

NO RATING

LCL:

WCC:

772

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel