998D0451IMP

View detailed technical data, stock status, and sourcing information for: 998D0451IMP
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-947-4227

Item Name Code

10089

Assigment Date

03/30/1966 (60 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

2.562 inches nominal overall width, 5.250 inches nominal overall diameter, 0.098 inches nominal keyway depth, 0.187 inches nominal keyway width, 1 keyway quantity

Product Characteristics

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

Overall Width: 2.562 inches nominal
Keyway Width: 0.187 inches nominal
Keyway Depth: 0.098 inches nominal
Overall Diameter: 5.250 inches nominal
Keyway Quantity: 1
Keyway Length: 1.500 inches nominal
Blade Quantity: 5
Hub Length: 0.625 inches nominal
Blade Type: backward curve
Design Type: single width
Mounting Method: key
Rotation Direction For Which Designed: counterclockwise
Hub Bore Diameter: 0.875 inches nominal
Hub Location: back side and front side
Hub Quantity: 2
Keyway Type: rectangular
Material: copper alloy

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
657H0707	Centrifugal Pump Impeller
998D0451IMP	Centrifugal Pump Impeller
A593	Centrifugal Pump Impeller

FAQs

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

What is the FSCG of the NSN 4320-00-947-4227?

The FSCG of the NSN 4320-00-947-4227 is 4320

Does the NSN 4320-00-947-4227 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-947-4227 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 4320-00-947-4227 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-947-4227 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 4320-00-947-4227 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Mar 30, 1966