120978L7-20

View detailed technical data, stock status, and sourcing information for: 120978L7-20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-291-0687

Item Name Code

15903

Assigment Date

12/22/1988 (37 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

1.918 inches minimum and 1.948 inches maximum fastener length, spline drive shear head head style, right-hand thread direction, 0.658 inches minimum and 0.708 inches maximum thread 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: 0.658 inches minimum and 0.708 inches maximum
Fastener Length: 1.918 inches minimum and 1.948 inches maximum
Head Style: spline drive shear head
Head Height: 0.257 inches nominal
Grip Diameter: 0.435 inches minimum and 0.4367 inches maximum
Head Minor Diameter: 0.711 inches minimum and 0.717 inches maximum
Nominal Thread Diameter: 0.437 inches
Grip Length: 1.240 inches minimum and 1.260 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 260000 pounds per square inch
Hardness Rating: 50.0 rockwell c minimum and 56.0 rockwell c maximum overall
Minimum Yield Strength: 216000 pounds per square inch
Surface Finish: 32.0 microinches bearing surface of head
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 and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 fed 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
120978L7-20	Shear Bolt
5306PL1498876	Shear Bolt
5306PL1721109	Shear Bolt
AIC596L7-20	Shear Bolt
C7521L7-20	Shear Bolt
H411L7-20	Shear Bolt
PBF7521L7-20	Shear Bolt
VCG0009L7-20	Shear Bolt
VCG009L7-20	Shear Bolt
VS3133L7-20	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-291-0687?

The FSCG of the NSN 5306-01-291-0687 is 5306

Does the NSN 5306-01-291-0687 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-291-0687 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 5306-01-291-0687 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-291-0687 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 5306-01-291-0687 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Dec 22, 1988