904386-21

View detailed technical data, stock status, and sourcing information for: 904386-21
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 904386-21 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-770-2580

Item Name Code

06657

Assigment Date

01/01/1960 (66 years ago)

right-hand thread direction, flat countersunk head style, 0.438 inches nominal fastener length, 2a thread class, 0.388 inches minimum and 0.438 inches maximum thread 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: 0.388 inches minimum and 0.438 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: flat countersunk
Head Diameter: 0.195 inches minimum and 0.225 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Screw Material Document And Classification: 66 fed std all material responses
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-022-7059	No Name Available	08/11/1967
5305-00-059-7190	No Name Available	12/01/1978
5305-00-245-9620	No Name Available	01/07/1970
5305-00-282-3815	No Name Available	09/30/1966
5305-00-470-3153	No Name Available	05/01/1995
5305-00-837-3334	No Name Available	11/25/1966
5305-00-838-6531	No Name Available	01/01/1983

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
0920-16	Machine Screw
10079890	Machine Screw
105C4-7	Machine Screw
22225ADX	Machine Screw
2950&416C23G	Machine Screw
40524003616	Machine Screw
418198-16	Machine Screw
418331-16	Machine Screw
5305007702580	Machine Screw
8929205-111	Machine Screw
904386-21	Machine Screw
946839-407	Machine Screw
AN505C4-7	Machine Screw
G7213-147	Machine Screw
H75116-0407	Machine Screw
MS51959-16	Machine Screw
P342-0047-000	Machine Screw
VA-97-0172-016	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-770-2580?

The FSCG of the NSN 5305-00-770-2580 is 5305

Does the NSN 5305-00-770-2580 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-770-2580 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 5305-00-770-2580 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-770-2580 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 5305-00-770-2580 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960