5305-01-668-6213

Find complete technical information, availability, and procurement data for: 5305-01-668-6213
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-668-6213

Item Name Code

29294

Assigment Date

11/30/2017 (8 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

0.459 inches nominal thread length, flat countersunk head style, 3a thread class, 4.2715 inches nominal fastener length, right-hand thread direction

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.459 inches nominal
Fastener Length: 4.2715 inches nominal
Head Style: flat countersunk
Head Diameter: 0.625 inches minimum and 0.635 inches maximum
Grip Diameter: 0.311 inches minimum and 0.312 inches maximum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: b-2 bomber
Nominal Thread Diameter: 0.3125 inches
Grip Length: 3.8125 inches nominal
Thread Quantity Per Inch: 24
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: ams 2700 assn std single treatment response or astm a967 assn std single treatment response overall
Thread Series Designator: unjf

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
03A173-5-61	Close Tolerance Screw
AIC1651-5-61	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-668-6213?

The FSCG of the NSN 5305-01-668-6213 is 5305

Does the NSN 5305-01-668-6213 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-668-6213 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 5305-01-668-6213 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-668-6213 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 5305-01-668-6213 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Thu, Nov 30, 2017