SCD1779-3-8

View detailed technical data, stock status, and sourcing information for: SCD1779-3-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-199-1335

Item Name Code

29294

Assigment Date

01/17/1985 (41 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

flat countersunk head style, 3a thread class, 0.308 inches minimum and 0.375 inches maximum thread length, right-hand thread direction, 0.818 inches minimum and 0.865 inches maximum 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: 0.308 inches minimum and 0.375 inches maximum
Fastener Length: 0.818 inches minimum and 0.865 inches maximum
Head Style: flat countersunk
Head Diameter: 0.339 inches minimum and 0.381 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.490 inches minimum and 0.510 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 220000 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
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium or cadmium and chromate overall
Surface Treatment Document And Classification: nas 672 assn std 1st treatment response or mil-c-8837 ty2 cl2 mil spec 2nd treatment response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-092-6589	No Name Available	01/01/2002
5305-01-006-9469	No Name Available	11/01/1988

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
1067061-3-8	Close Tolerance Screw
106706H3-8	Close Tolerance Screw
106706T-3-8	Close Tolerance Screw
1202-3-8	Close Tolerance Screw
GB510BC3-8	Close Tolerance Screw
GB510CE3-8	Close Tolerance Screw
GB510N3A8	Close Tolerance Screw
HR204-3-8	Close Tolerance Screw
HR204JK-3-8	Close Tolerance Screw
PBF1202-3-8	Close Tolerance Screw
SC1779-3-8	Close Tolerance Screw
SCD1779-3-8	Close Tolerance Screw
SFH22-3A8	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-199-1335?

The FSCG of the NSN 5305-01-199-1335 is 5305

Does the NSN 5305-01-199-1335 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-199-1335 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 5305-01-199-1335 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-199-1335 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 5305-01-199-1335 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Thu, Jan 17, 1985