Internal Wrenching Plain Nut NSN 5310-01-274-3251

Item Description

A cylindrical-shaped nut, the end opposite the bearing surface being designed with an internal socket or splines for use with an inserted wrench.

NSN: 5310-01-274-3251

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Width Between Flats

0.310 inches

Internal Drive Style

Double hexagon

Nut Style

Internal wrenching

Nut Diameter

Between 0.521 inches and 0.526 inches

Nut Height

Between 0.512 inches and 0.522 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.312 inches

Countersink Angle

90.0 degrees nut

Criticality Code Justification

Zzzy

Special Features

Item must comply with requirements of defense supply center philadelphia production standard no. Po0166nrp

Material

Steel comp 303

Special Test Features

Special quality control testing

Test Data Document

81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Reference Number Differentiating Characteristics

Reference number differentiating material will be in accordance with naval inventory control point activity hx quality control. Manufacturing and testing specifications available at the dla icp

FSC

5310 Nuts And Washers

NIIN

012743251

NSN

5310012743251

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

B-129141-1

Cage Code:

94271

Status:

MSDS:

Part Number:

129141-1

Cage Code:

94271

Status:

MSDS:

Part Number:

ALLENUT 5/16-24UNF-2A

Cage Code:

94271

Status:

MSDS:

Part Number:

PO0166NRP

Cage Code:

14153

Status:

MSDS:

Part Number:

LL-HX5-5067

Cage Code:

14153

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 7318160000
NAICS: 332722
SITC: 69421
Description: Nuts of iron or steel
End Use (Code 12300):
Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-274-3251

What are the manufacturers of nsn 5310012743251?

Lockheed Martin Corporation (94271)
Defense Logistics Agency (14153)

Does this nsn 5310012743251 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5310012743251
A cylindrical-shaped nut, the end opposite the bearing surface being designed with an internal socket or splines for use with an inserted wrench.

Does nsn 5310012743251 contain any precious metals?
No precious metal content.

Does nsn 5310012743251 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5310012743251?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

04893

FIIG:

A021A0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service