5305-01-267-4198

Find complete technical information, availability, and procurement data for: 5305-01-267-4198
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-267-4198

Item Name Code

33044

Assigment Date

11/10/1987 (38 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.

0.250 inches nominal thread length, 2a thread class, 0.775 inches minimum and 0.795 inches maximum fastener length, right-hand thread direction, flat countersunk head style

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: 0.250 inches nominal
Fastener Length: 0.775 inches minimum and 0.795 inches maximum
Head Style: flat countersunk
Head Diameter: 0.340 inches minimum and 0.350 inches maximum
Internal Drive Style: cross recess type 1
Material Accommodated Thickness: 0.090 inches minimum and 0.125 inches maximum
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: aluminum alloy 6061 stand-off
Material: steel comp xm-7 or steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 fastener
Material Document And Classification: astm a493 assn std all material responses fastener
Material Document And Classification: qq-a-225/8 fed spec single material response stand-off
Surface Treatment: anodize stand-off
Surface Treatment: passivate fastener
Surface Treatment Document And Classification: mil-a-8625 ty 1 cl 1 mil spec single treatment response stand-off
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response fastener
Thread Series Designator: unc

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
5546381-7	Panel Screw Assembly
DPY7900P-8-B-5	Panel Screw Assembly

FAQs

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

What is the FSCG of the NSN 5305-01-267-4198?

The FSCG of the NSN 5305-01-267-4198 is 5305

Does the NSN 5305-01-267-4198 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-267-4198 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 5305-01-267-4198 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-267-4198 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 5305-01-267-4198 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Tue, Nov 10, 1987