BFN120-4-7

View detailed technical data, stock status, and sourcing information for: BFN120-4-7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-356-6159

Item Name Code

05280

Assigment Date

04/08/1992 (34 years ago)

"a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes:circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller."

dry film lubricant lubrication, 0.254 inches maximum and 0.274 inches maximum first end counterbore diameter, right-hand thread direction, prevailing torque all metal design locking feature, 3b 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: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Counterbore Diameter: 0.254 inches maximum and 0.274 inches maximum first end
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate (floating)
Nut Length: 1.272 inches minimum and 1.292 inches maximum
Nut Height: 0.637 inches minimum and 0.657 inches maximum
Plate Thickness: 0.028 inches minimum and 0.036 inches maximum
Plate Width: 0.534 inches minimum and 0.554 inches maximum
Nut Counterbore Depth: 0.437 inches minimum and 0.457 inches maximum first end
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.495 inches minimum and 0.505 inches maximum
Center To Center Distance Between Mounting Holes Along Length: 0.998 inches minimum and 1.002 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5525 assn std single material response or ams 5735 assn std single material response first end
Surface Treatment: passivate shell
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response shell

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
03A120-4A7	Plate Self-Locking Nut
BFN120-4-7	Plate Self-Locking Nut
F13742-7-4	Plate Self-Locking Nut
F52891-4-7	Plate Self-Locking Nut
NS202749-4-7	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-356-6159?

The FSCG of the NSN 5310-01-356-6159 is 5310

Does the NSN 5310-01-356-6159 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-356-6159 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 5310-01-356-6159 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-356-6159 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 5310-01-356-6159 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Apr 8, 1992