BFF681

View detailed technical data, stock status, and sourcing information for: BFF681
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5915 Filters and Networks

National Stock Number

5915-01-125-7540

Item Name Code

13911

Assigment Date

02/01/1982 (44 years ago)

A threaded or tempered item used to secure the stud, turnlock fastener or stud assembly, turnlock fastener by engaging with the cross pin, cam lead threads, or eared nut of the stud, turnlock fastener and securing it by means of its thread locking or spring action.

0.390 inches maximum body height, 1.275 inches nominal distance between centerlines of mounting facilities parallel to body length, 0.520 inches nominal overall height, 1.500 inches maximum body width, 1.650 inches maximum body length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Height: 0.520 inches nominal
Body Length: 1.650 inches maximum
Body Width: 1.500 inches maximum
Body Height: 0.390 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 1.275 inches nominal
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width: 1.125 inches nominal
Operating Temp Range: -55.0 to 100.0 celsius
Reference Frequency Per Function: 13.0 kilohertz blank
Source Impedance Rating Per Function: 3.0 kilohms blank
Load Impedance Per Function: 50.0 kilohms blank
Principal Circuitry Type Per Function: inductance-capacitance blank
Inclosure Type: hermetically sealed
Mounting Facility Type And Quantity: 6 terminal
Insertion Loss At Reference Frequency Per Function In Decibels: 2.0 blank
Functional Terminal Type And Quantity: 1 pin ground 3rd function
Functional Terminal Type And Quantity: 1 pin input 1st function
Functional Terminal Type And Quantity: 1 pin output 2nd function
Specified Frequencies Of Discrimination Per Function: 2.00 kilohertz blank and 13.00 kilohertz blank and 18.50 kilohertz blank and 24.00 kilohertz blank
Body Material: metal
Frequency Band Width Per Function: 2.00 kilohertz blank and 13.00 kilohertz blank
Discrimination At Specified Frequencies Per Function In Decibels: 3.0 minimum blank and 40.0 maximum blank
Style Designator: rectangular terminal/terminals on one surface

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
10L15	Low Pass Filter
45F25	Low Pass Filter
642-1620-001	Low Pass Filter
673-0056-010	Low Pass Filter
BFF681	Low Pass Filter

FAQs

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

What is the FSCG of the NSN 5915-01-125-7540?

The FSCG of the NSN 5915-01-125-7540 is 5915

Does the NSN 5915-01-125-7540 have a Schedule B code assigned?

Yes, the Schedule B code is 8527995030

Does NSN 5915-01-125-7540 require demilitarization?

Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).

Does NSN 5915-01-125-7540 contain precious materials?

Item does not contain precious metal.

Does NSN 5915-01-125-7540 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5915-01-125-7540 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Mon, Feb 1, 1982