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NSN 438238

Flat 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.

wool overall material, round peripheral shape style, 0.100 inches nominal hole diameter, rectangular cross-sectional shape style, round center hole shape style.

NSN 5310-00-663-7975 Datasheet

(NSN) National Stock Number
5310-00-663-7975
(FSG) Federal Supply Group
53 - Hardware and Abrasives
(FSC) Federal Supply Classification
5310 - Nuts and Washers
(NIIN) National Item Identification Number
00-663-7975
Requires Demilitarization
Yes
(INC) Item Name Code
13393
Date
Tue, Jan 1, 1963
Schedule B Code
6307909995
Center Hole Shape Style
round
Cross-Sectional Shape Style
rectangular
Hole Diameter
0.100 inches nominal
Peripheral Shape Style
round
Material
wool overall
Overall Diameter
0.250 inches nominal
Thickness
0.050 inches nominal

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
U - Precious metal content is unknown
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
0013393

Cross Reference

CAGE Codes

94580
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
U.s./canadian manufacturers

Freight Information

Air Commodity
VZ -
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Less than Carload Rating
S - 60.0
National Motor Freight Class Rating
W - Rating variable
Rail Variation
1
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
95100
Water Commodity
713 - Metal hardware
National Motor Freight Classification Item Number
194120

Questions & Answers

  1. What is the FSCG of the NSN 5310-00-663-7975?

    The FSCG of the NSN 5310-00-663-7975 is 5310

  2. Does the NSN 5310-00-663-7975 have a Schedule B code assigned?

    Yes, the Schedule B code is 6307909995

  3. Does NSN 5310-00-663-7975 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 5310-00-663-7975 contain precious materials?

    Precious metal content is unknown

  5. Does NSN 5310-00-663-7975 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 5310-00-663-7975 was assigned to the Federal Catalog?

    It was assigned 63 years ago, on Tue, Jan 1, 1963

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