B3A4F

View detailed technical data, stock status, and sourcing information for: B3A4F
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6685 Humidity Measuring and Controlling Instruments, Temperature and Pressure

National Stock Number

6685-00-239-6679

Item Name Code

07329

Assigment Date

11/08/1989 (36 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of high resistance wire (or ribbon) either wound on an insulated form or constructed so as to be self supporting. Opposition to the flow of current is an inherent property of the resistance wire and is manifest by the heat dissipation in the resistor. Excludes:suppressor,ignition interference.

fluctuating design type, 4.000 inches nominal stem length, 5.406 inches nominal overall length, concentric dial scale type, 3.000 inches nominal dial diameter

Product Characteristics

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

Overall Length: 5.406 inches nominal
Stem Length: 4.000 inches nominal
Design Type: fluctuating
Dial Diameter: 3.000 inches nominal
Scale Type: concentric dial
Scale Measurement Range: -40.000 to 180.000 deg fahrenheit
Material: steel corrosion resisting meter case
Surface Treatment: enamel meter case
Style Designator: straight form, horizontal dial

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6685-00-722-6356	No Name Available	02/01/1993
6685-00-782-5231	No Name Available	03/01/1995

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
B3A4F	Bime Self-Indicating Thermometer
ITD-3-18-0-4	Bime Self-Indicating Thermometer
ITD-3-18-A-4	Bime Self-Indicating Thermometer
ITM-3-18-A-4	Bime Self-Indicating Thermometer
MIL-T-17244	Bime Self-Indicating Thermometer

FAQs

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

What is the FSCG of the NSN 6685-00-239-6679?

The FSCG of the NSN 6685-00-239-6679 is 6685

Does the NSN 6685-00-239-6679 have a Schedule B code assigned?

Yes, the Schedule B code is 9025114000

Does NSN 6685-00-239-6679 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 6685-00-239-6679 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-239-6679 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 6685-00-239-6679 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Nov 8, 1989