655-00-0004

View detailed technical data, stock status, and sourcing information for: 655-00-0004
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6620 Engine Instruments

National Stock Number

6620-01-172-9977

Item Name Code

07428

Assigment Date

02/29/1984 (42 years ago)

An item specifically designed to absorb and consume surges of voltage such as that resulting across contacts when breaking a circuit having an inductive load or a burst of static across a telephone receiver. It is connected in parallel with the item it is protecting. It may be made up of metallic rectifier cells or semiconductor devices connected back-to-back which may or may not be shunted by a capacitor. It may also be a single rectifier cell or semiconductor device shunted by a capacitor. Excludes:metallic rectifiers which are rated for rectifying capabilities and all single unit semiconductor devices not shunted by a capacitor. For items perfoming this function by use of voltage sensitive resistors, see resistor, voltage sensitive. See also cutout disk, protective.

+38.0 to 121.0 deg celsius and +100.0 to 250.0 deg fahrenheit scale range, adjustable adjustability, 1.990 inches nominal overall diameter, 100.0 deg fahrenheit and 160.0 deg fahrenheit and 200.0 deg fahrenheit and 250.0 deg fahrenheit and 121.0 deg celsius and 38.0 deg celsius and 71.0 deg celsius and 93.0 deg celsius graduation unit, 0.970 inches nominal overall depth

Product Characteristics

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

Overall Depth: 0.970 inches nominal
Overall Diameter: 1.990 inches nominal
Graduation Unit: 100.0 deg fahrenheit and 160.0 deg fahrenheit and 200.0 deg fahrenheit and 250.0 deg fahrenheit and 121.0 deg celsius and 38.0 deg celsius and 71.0 deg celsius and 93.0 deg celsius
Adjustability: adjustable
Scale Range: +38.0 to 121.0 deg celsius and +100.0 to 250.0 deg fahrenheit
Scale Name: temperature
Illuminative Method: any acceptable
Dial Size: 2.000 in. dia
Connection Quantity: 1
Pointer Color: black
Pointer Type: indicating
Scale Type: dial
Connection Type: external
Mounting Method: bracket
Scale Inscription/Background Color: white inscription on black background for deg fahrenheit,burnt orange inscription on black background for deg celsius
Connection Location: back, center
Bezel Type: any acceptable
Connection Size: 10-32 nf-2a
Mounting Connection Location: back
Connector Type Vent: not provided
Material: aluminum actuating element
Material: plastic case
Fsc Application Data: engine

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
3070-00082	Dial Indicating Pressure Gage
655-00-0004	Dial Indicating Pressure Gage

FAQs

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

What is the FSCG of the NSN 6620-01-172-9977?

The FSCG of the NSN 6620-01-172-9977 is 6620

Does the NSN 6620-01-172-9977 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6620-01-172-9977 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 6620-01-172-9977 contain precious materials?

Item does not contain precious metal.

Does NSN 6620-01-172-9977 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 6620-01-172-9977 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, Feb 29, 1984