NAS1805-20N

View detailed technical data, stock status, and sourcing information for: NAS1805-20N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-544-2704

Item Name Code

29729

Assigment Date

10/10/2006 (19 years ago)

The component part of a starter, engine, electrical which transforms electrical energy into mechanical energy. It is specifically designed to energize an internal combustion engine starter.

1.250 inches maximum overall height, right-hand thread direction, 3b thread class, prevailing torque all metal design locking feature, 2.019 inches maximum washer outside diameter

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
Washer Outside Diameter: 2.019 inches maximum
Overall Height: 1.250 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.170 inches nominal
End Item Identification: b-52 aircraft
Width Across Flats: 1.489 inches minimum and 1.502 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.250 inches
Special Features: embrittlement test does not apply, cetyl alcohol (non-solid film lubricant) per mil-l-87132, type i, grade a
Material: iron alloy 660 overall
Material Document And Classification: ams5737 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416, type ii, class 2 fed spec single treatment response 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
NAS1805-20N	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-544-2704?

The FSCG of the NSN 5310-01-544-2704 is 5310

Does the NSN 5310-01-544-2704 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-544-2704 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 5310-01-544-2704 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-544-2704 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 5310-01-544-2704 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Tue, Oct 10, 2006