BF442-4-4

View detailed technical data, stock status, and sourcing information for: BF442-4-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-279-4283

Item Name Code

05280

Assigment Date

08/31/1973 (52 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

0.098 inches minimum and 0.103 inches maximum mounting hole diameter, 3b thread class, prevailing torque all metal design locking feature, 0.254 inches minimum nut counterbore diameter, right-hand thread direction

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 minimum nut
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate
Nut Length: 1.306 inches maximum
Nut Height: 0.475 inches maximum
Plate Thickness: 0.028 inches minimum and 0.036 inches maximum
Plate Width: 0.574 inches nominal
Nut Counterbore Depth: 0.250 inches minimum nut
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: 0.310 inches minimum and 0.314 inches maximum
Thread Series: unjf
Features Provided: floating nut
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: steel corrosion resisting nut
Material: steel corrosion resisting shell
Material Document And Classification: ams 5525 assn std single material response or ams 5732 assn std single material response shell
Surface Treatment: passivate shell
Specification/Standard Data: 76301-st3-442 manufacturers standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-110-1910	No Name Available	12/01/1991

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
10121245	Plate Self-Locking Nut
3929AS1224-4A1	Plate Self-Locking Nut
5310PL0717217	Plate Self-Locking Nut
5310PL1822696	Plate Self-Locking Nut
BF442-4-4	Plate Self-Locking Nut
BFN442-4-4	Plate Self-Locking Nut
F18427-4-4	Plate Self-Locking Nut
F18427L4-4	Plate Self-Locking Nut
F49251-4-4	Plate Self-Locking Nut
F49251E4-4	Plate Self-Locking Nut
NAS1792C4-4	Plate Self-Locking Nut
NS202042-048-4	Plate Self-Locking Nut
ST3M442-4A4	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-279-4283?

The FSCG of the NSN 5310-00-279-4283 is 5310

Does the NSN 5310-00-279-4283 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-279-4283 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 5310-00-279-4283 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-279-4283 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 5310-00-279-4283 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Aug 31, 1973