B1990-7-3

View detailed technical data, stock status, and sourcing information for: B1990-7-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-065-7394

Item Name Code

22846

Assigment Date

09/23/1978 (47 years ago)

A capacitor whose capacitance value cannot be adjusted or varied, having paper as the dielectric material. It may be a single unit or consist of two or more fixed units which cannot be seperated. For items whose dielectric material consist of plasticized (plastic impregnated) paper or paper-plastic combinations, see capacitor, fixed, plastic dielectric. For items whose electrodes consist of a metallic film deposited (metallized) on the dielectric material, see capacitor, fixed, metalized, paper-plastic dielectric.

right-hand thread direction, 0.860 inches minimum and 0.890 inches maximum fastener length, flat countersunk head style, 0.330 inches minimum and 0.380 inches maximum thread length, 2a thread class

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: 0.330 inches minimum and 0.380 inches maximum
Fastener Length: 0.860 inches minimum and 0.890 inches maximum
Head Style: flat countersunk
Head Diameter: 0.266 inches minimum and 0.286 inches maximum
Shoulder Diameter: 0.193 inches minimum and 0.195 inches maximum first shoulder
Shoulder Length: 0.510 inches minimum and 0.530 inches maximum first shoulder
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Hardness Rating: 33.0 rockwell c minimum and 37.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Shoulder Shape: round first shoulder
Part Name Assigned By Controlling Agency: screw,shoulder
Material: steel comp 4037 or steel comp 8740 overall
Material Document And Classification: aisi assn std all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 class 3 fed spec single treatment response overall
Thread Series Designator: unf

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
B1990-7-3	Shoulder Screw
BM19042-3-616	Shoulder Screw
BM19069-3-616	Shoulder Screw
GS551C3-616	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-065-7394?

The FSCG of the NSN 5305-01-065-7394 is 5305

Does the NSN 5305-01-065-7394 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-065-7394 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 5305-01-065-7394 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-065-7394 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 5305-01-065-7394 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Sat, Sep 23, 1978