6685-00-757-4442

Find complete technical information, availability, and procurement data for: 6685-00-757-4442
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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

6685-00-757-4442

Item Name Code

07428

Assigment Date

07/16/1971 (55 years ago)

A device for connecting the ends of two shafts to produce in effect, one piece of rigid shafting so that the rotary motion of one shaft is transmitted to the other shaft. Couplings of the sleeve type must have an over-all length exceeding the outside diameter, or must have an internal spline.

5.875 inches nominal overall diameter, 5.375 inches nominal bolt circle diameter, 3 mounting hole quantity, 0.219 inches nominal mounting hole diameter, 2.750 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: 2.750 inches nominal
Bolt Circle Diameter: 5.375 inches nominal
Mounting Hole Diameter: 0.219 inches nominal
Mounting Hole Quantity: 3
Overall Diameter: 5.875 inches nominal
Graduation Unit: 100.0 pounds
Actuation Type: single bourdon tube
Adjustability: adjustable or nonadjustable
Scale Range: +0.0 to 1000.0 pounds pressure per square inch
Scale Name: pressure
Dial Size: 4-1/2 in. dia
Connection Quantity: 1
Pointer Color: black and red
Pointer Type: indicating and reference
Scale Marking: psig
Scale Type: single
Scale Smallest Increment: 10.0 pounds
Connection Type: external
Mounting Method: surface wall
Scale Accuracy: 1 percent entire range
Scale Inscription/Background Color: black figures on white background
Connection Location: back
Connection Size: 1/4 in. tube
Connector Type Vent: not provided
Criticality Code Justification: zzzy
Material: aluminum case
Material: nickel alloy actuating element
Material: plastic protective crystal
Fsc Application Data: gage,pressure,dial indicating,except engine
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control manufacturing and testing specifications

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
SA24-3PPF-RWBO	Dial Indicating Pressure Gage

FAQs

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

What is the FSCG of the NSN 6685-00-757-4442?

The FSCG of the NSN 6685-00-757-4442 is 6685

Does the NSN 6685-00-757-4442 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-757-4442 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 6685-00-757-4442 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-757-4442 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 6685-00-757-4442 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jul 16, 1971