FTK7157

View detailed technical data, stock status, and sourcing information for: FTK7157
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-688-2384

Item Name Code

18257

Assigment Date

05/08/2020 (6 years ago)

Two or more batteries on a common mounting or mounted on each other. They must be separable and each item must be capable of functioning in accordance with its given item name.

1.975 inches minimum and 2.065 inches maximum fastener length, right-hand thread direction, 3a thread class, hexagon head style, 0.360 inches minimum and 0.390 inches maximum thread length

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: 0.360 inches minimum and 0.390 inches maximum
Fastener Length: 1.975 inches minimum and 2.065 inches maximum
Head Style: hexagon
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Extended Washer Diameter: 0.560 inches nominal
Extended Washer Thickness: 0.090 inches minimum and 0.110 inches maximum
Locking Feature: lockwasher head
End Item Identification: 5840-01-669-5071
Nominal Thread Diameter: 0.250 inches
Features Provided: sleeve and lock washer and flat washer
Thread Quantity Per Inch: 28
Material: steel corrosion resisting fastener
Material: steel corrosion resisting primary washer
Material: steel corrosion resisting ring
Material: steel corrosion resisting secondary washer
Material Document And Classification: ams5731 assn std single material response and ams5737 assn std single material response fastener
Material Document And Classification: mil-s-5059 mil spec single material response primary washer
Material Document And Classification: ms35338 mil spec single material response secondary washer
Material Document And Classification: qq-s-763 fed spec single material response or astm-a-582 assn std single material response or ams5640 assn std single material response ring
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf

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
FTK7157	Hexagon Head Cap Screw
FTK7157HH12-16A	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-688-2384?

The FSCG of the NSN 5305-01-688-2384 is 5305

Does the NSN 5305-01-688-2384 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-688-2384 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 5305-01-688-2384 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-688-2384 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 5305-01-688-2384 was assigned to the Federal Catalog?

It was assigned 6 years ago, on Fri, May 8, 2020