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NSN 4084-06

Concave Washer

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.435 inches minimum and 0.445 inches maximum hole diameter, 41.0 rockwell c minimum and 48.0 rockwell c maximum hardness rating, 0.105 inches minimum and 0.135 inches maximum material thickness, unable to decode material, unable to decode material document and classification.

NSN 5310-00-975-2741 Datasheet

(NSN) National Stock Number
5310-00-975-2741
(FSG) Federal Supply Group
53 - Hardware and Abrasives
(FSC) Federal Supply Classification
5310 - Nuts and Washers
(NIIN) National Item Identification Number
00-975-2741
Requires Demilitarization
Yes
(INC) Item Name Code
15930
Date
Thu, May 11, 1972
Schedule B Code
7318220000
Hardness Rating
41.0 rockwell c minimum and 48.0 rockwell c maximum
Hole Diameter
0.435 inches minimum and 0.445 inches maximum
Material Document And Classification
unable to decode
Material Thickness
0.105 inches minimum and 0.135 inches maximum
Material
unable to decode
Outside Diameter
0.640 inches maximum
Radius
0.385 inches minimum and 0.415 inches maximum
Recess Diameter
0.620 inches maximum
Specification/Standard Data
80205-nas1288 professional/industrial association standard
Style Designator
concave
Surface Treatment Document And Classification
Surface Treatment

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
0015930

Cross Reference

CAGE Codes

019L2
Esna, Llc
U.s./canadian manufacturers
72962
Harvard Industries Inc
U.s./canadian manufacturers
80205
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Civilian standards and standards organizations (ex:iso,din,bs,ansi)

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
U - 50.0
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
55210
Water Commodity
713 - Metal hardware
National Motor Freight Classification Item Number
194160

Schedule B & Trade

Schedule B
7318-22-0000
Description
washers other than 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 5310-00-975-2741?

    The FSCG of the NSN 5310-00-975-2741 is 5310

  2. Does the NSN 5310-00-975-2741 have a Schedule B code assigned?

    Yes, the Schedule B code is 7318220000

  3. Does NSN 5310-00-975-2741 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 5310-00-975-2741 contain precious materials?

    Precious metal content is unknown

  5. Does NSN 5310-00-975-2741 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 5310-00-975-2741 was assigned to the Federal Catalog?

    It was assigned 54 years ago, on Thu, May 11, 1972

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