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NSN 10116659

Recessed Washer

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

86.0 degrees minimum and 94.0 degrees maximum bottom recess angle, 29.0 rockwell c minimum and 39.0 rockwell c maximum hardness rating, 0.192 inches minimum and 0.200 inches maximum hole diameter, material document and classification, 0.236 inches minimum and 0.260 inches maximum bottom recess diameter.

NSN 5310-00-187-9727 Datasheet

(NSN) National Stock Number
5310-00-187-9727
(FSG) Federal Supply Group
53 - Hardware and Abrasives
(FSC) Federal Supply Classification
5310 - Nuts and Washers
(NIIN) National Item Identification Number
00-187-9727
Requires Demilitarization
Yes
(INC) Item Name Code
15933
Date
Sun, Mar 11, 1973
Schedule B Code
7318220000
Bottom Recess Angle
86.0 degrees minimum and 94.0 degrees maximum
Bottom Recess Diameter
0.236 inches minimum and 0.260 inches maximum
Hardness Rating
29.0 rockwell c minimum and 39.0 rockwell c maximum
Hole Diameter
0.192 inches minimum and 0.200 inches maximum
Material Document And Classification
Material
Material Thickness
0.075 inches minimum and 0.085 inches maximum
Outside Diameter
0.428 inches minimum and 0.448 inches maximum
Style Designator
recessed both sides
Surface Finish
unable to decode
Top Recess Angle
86.0 degrees minimum and 94.0 degrees maximum
Top Recess Diameter
0.236 inches minimum and 0.260 inches maximum

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
0015933

Cross Reference

CAGE Codes

A486G
Nimikkeistokeskus Ncb Finland
Government departments or units, including military organizations
9009H
Jednolity Indeks Materialowy - Uniform Material Index
Government departments or units, including military organizations
S4080
Pilatus Aircraft Ltd
Non-us manufacturer (nato), other foreign organization or codification bureaus
96906
Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Military standards and standards organizations (ex:stanags,milspecs,defstans)

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 5310-00-187-9727?

    The FSCG of the NSN 5310-00-187-9727 is 5310

  2. Does the NSN 5310-00-187-9727 have a Schedule B code assigned?

    Yes, the Schedule B code is 7318220000

  3. Does NSN 5310-00-187-9727 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 5310-00-187-9727 contain precious materials?

    Precious metal content is unknown

  5. Does NSN 5310-00-187-9727 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 5310-00-187-9727 was assigned to the Federal Catalog?

    It was assigned 53 years ago, on Sun, Mar 11, 1973

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