C7985B3-7R

View detailed technical data, stock status, and sourcing information for: C7985B3-7R
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-682-7250

Item Name Code

29294

Assigment Date

08/21/2019 (7 years ago)

An item specifically designed to absorb and consume surges of voltage such as that resulting across contacts when breaking a circuit having an inductive load or a burst of static across a telephone receiver. It is connected in parallel with the item it is protecting. It may be made up of metallic rectifier cells or semiconductor devices connected back-to-back which may or may not be shunted by a capacitor. It may also be a single rectifier cell or semiconductor device shunted by a capacitor. Excludes:metallic rectifiers which are rated for rectifying capabilities and all single unit semiconductor devices not shunted by a capacitor. For items perfoming this function by use of voltage sensitive resistors, see resistor, voltage sensitive. See also cutout disk, protective.

flat countersunk head style, 0.378 inches minimum and 0.428 inches maximum thread length, right-hand thread direction, 0.826 inches minimum and 0.856 inches maximum fastener length, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.378 inches minimum and 0.428 inches maximum
Fastener Length: 0.826 inches minimum and 0.856 inches maximum
Head Style: flat countersunk
Head Diameter: 0.258 inches minimum and 0.305 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: f16
Nominal Thread Diameter: 0.2500 inches
Grip Length: 0.428 inches minimum and 0.448 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 3740 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Part Name Assigned By Controlling Agency: bolt
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: aluminum and chromate overall
Surface Treatment Document And Classification: mil-c-83488, type 2, class 3 mil spec 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
121558-3-A7BX	Close Tolerance Screw
AIC985B3-7R	Close Tolerance Screw
C7985B3-7R	Close Tolerance Screw
H185B3-7R	Close Tolerance Screw
SF117B3-7R	Close Tolerance Screw
VT1694AS3-7X	Close Tolerance Screw
VT1694AS36R	Close Tolerance Screw
VT1694AS37R	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-682-7250?

The FSCG of the NSN 5305-01-682-7250 is 5305

Does the NSN 5305-01-682-7250 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-682-7250 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 5305-01-682-7250 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-682-7250 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 5305-01-682-7250 was assigned to the Federal Catalog?

It was assigned 7 years ago, on Wed, Aug 21, 2019