BM501178-2

View detailed technical data, stock status, and sourcing information for: BM501178-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-195-1379

Item Name Code

01858

Assigment Date

03/11/1970 (56 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

square nut style, 3b thread class, 0.188 inches nominal nut height, 0.380 inches nominal width across flats, 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
Nut Style: square
Nut Height: 0.188 inches nominal
Width Across Flats: 0.380 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.138 inches
Special Features: compression projection on one side
Material: plastic overall

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
BM501178-2	Square Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-195-1379?

The FSCG of the NSN 5310-00-195-1379 is 5310

Does the NSN 5310-00-195-1379 have a Schedule B code assigned?

Yes, the Schedule B code is 3926909987

Does NSN 5310-00-195-1379 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 5310-00-195-1379 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-195-1379 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 5310-00-195-1379 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Mar 11, 1970