Model: 2552-144

Barrel Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Counterbore Diameter

0.907 inches nut and 0.917 inches nut

Nut Style

Floating self-locking barrel

Nut Diameter

Between 1.5554 inches and 1.5584 inches

Nut Length

2.000 inches

Barrel Height

Between 0.817 inches and 0.837 inches

Nut Height

Between 1.364 inches and 1.384 inches

Nut Counterbore Depth

0.506 inches nut and 0.526 inches nut

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unjf

Features Provided

Floating nut

Thready Qty Per Inch (tpi)

Hardness Rating

Between 29.0 rockwell c and 35.0 rockwell c

Thread Size

0.875 inches

Material

Plastic polyhexamethylene amide locking insert or plastic polycaprolactam locking insert

Material

Steel comp 4130 nut

Material Specification

Mil-m-20693 military specification all material responses locking insert

Material Specification

Sae assn standard single material response nut

Surface Treatment

Cadmium nut

Surface Treatment Specification

Qq-p-416, type 1, class 3 federal specification single treatment response nut

NSN

5310-00-659-0286

Part Number

2552-144

Description

Nut,self-locking,barrel

CAGE

56878

A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, round.

Part 2552-144 NSN 5310-00-659-0286

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15891

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:

0.3000lbs

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

Pricing & Availability Check

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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