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NSN NC174680

Spring Tension Washer

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

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NSN 5310-01-218-7543 Datasheet

(NSN) National Stock Number
5310-01-218-7543
(FSG) Federal Supply Group
53 - Hardware and Abrasives
(FSC) Federal Supply Classification
5310 - Nuts and Washers
(NIIN) National Item Identification Number
01-218-7543
Requires Demilitarization
Yes
(INC) Item Name Code
15938
Date
Fri, Oct 18, 1985
Schedule B Code
7318210000
Material
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Identification

Demilitarization Code
A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Precious Metals Indicator
A - Item does not contain precious metal.
Hazardous Metals Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Pseudo Item Name Code
0015938

Cross Reference

CAGE Codes

16626
Circor Intl Inc
U.s./canadian manufacturers
35795
Leslie Controls, Inc. Dba Leslie Controls Inc
U.s./canadian manufacturers

Freight Information

Air Commodity
BZ -
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
National Motor Freight Class Rating
W - Rating variable
Special Handling
9 - Other or no special handling required (sh)
Type of Cargo
Z - No special type of cargo code applicable
Uniform Freight Classification Item Number
48950
Water Commodity
576 - Metal and metal products, nos, (less than 35 feet)
National Motor Freight Classification Item Number
093486

Schedule B & Trade

Schedule B
7318-21-0000
Description
spring washers and other lock washers, iron or steel
End Use
12300 - Finished metal shapes
Unit of Quantity
KG
USDA
Yes
(SITC) Standard International Trade Classification
69422
(NAICS) North American Industrial Classification System
332722

Questions & Answers

  1. What is the FSCG of the NSN 5310-01-218-7543?

    The FSCG of the NSN 5310-01-218-7543 is 5310

  2. Does the NSN 5310-01-218-7543 have a Schedule B code assigned?

    Yes, the Schedule B code is 7318210000

  3. Does NSN 5310-01-218-7543 require demilitarization?

    Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

  4. Does NSN 5310-01-218-7543 contain precious materials?

    Item does not contain precious metal.

  5. Does NSN 5310-01-218-7543 contain hazardous materials?

    Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

  6. When the NSN 5310-01-218-7543 was assigned to the Federal Catalog?

    It was assigned 40 years ago, on Fri, Oct 18, 1985

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