NAS1221-3-3T

View detailed technical data, stock status, and sourcing information for: NAS1221-3-3T
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-527-0955

Item Name Code

06657

Assigment Date

08/28/1974 (51 years ago)

0.339 inches nominal thread length, flat countersunk head style, right-hand thread direction, 3a thread class, 0.527 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: 3a
Thread Direction: right-hand
Thread Length: 0.339 inches nominal
Fastener Length: 0.527 inches nominal
Head Style: flat countersunk
Head Diameter: 0.344 inches minimum and 0.385 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1221 professional/industrial association 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
NAS1221-3-3T	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-527-0955?

The FSCG of the NSN 5305-00-527-0955 is 5305

Does the NSN 5305-00-527-0955 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-527-0955 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 5305-00-527-0955 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-527-0955 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 5305-00-527-0955 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Wed, Aug 28, 1974