5305-01-666-8669

Find complete technical information, availability, and procurement data for: 5305-01-666-8669
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-666-8669

Item Name Code

06657

Assigment Date

09/25/2017 (8 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

1.167 inches nominal thread length, right-hand thread direction, 2a thread class, flat countersunk head style, 1.250 inches nominal fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 1.167 inches nominal
Fastener Length: 1.250 inches nominal
Head Style: flat countersunk
Head Diameter: 0.359 inches minimum and 0.385 inches maximum
Internal Drive Style: cross recess type 1
End Item Identification: an/brr6 unit
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 24
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: nickel alloy 400
Screw Material Document And Classification: qq-n-281 fed spec single material response
Thread Series Designator: unc
Specification/Standard Data: 96906-ms24693 government standard

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
MS24693-N78	Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-666-8669?

The FSCG of the NSN 5305-01-666-8669 is 5305

Does the NSN 5305-01-666-8669 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-666-8669 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.

Does NSN 5305-01-666-8669 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-666-8669 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.

When the NSN 5305-01-666-8669 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Mon, Sep 25, 2017