88-20021-1

View detailed technical data, stock status, and sourcing information for: 88-20021-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-559-8943

Item Name Code

03263

Assigment Date

01/01/1963 (63 years ago)

2 setscrew hole quantity, 0.320 inches minimum counterbore depth, 0.640 inches minimum counterbore diameter, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.484 inches maximum distance from hole center to knob/skirt base

Product Characteristics

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

Inside Diameter: 0.252 inches minimum and 0.254 inches maximum
Counterbore Diameter: 0.640 inches minimum
Counterbore Depth: 0.320 inches minimum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.484 inches maximum
Overall Depth: 0.730 inches minimum
Width: 0.890 inches minimum and 0.930 inches maximum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Length: 1.325 inches minimum and 1.375 inches maximum
Skirt Style: stepped
Attachment Method: setscrews
Overall Thickness: 0.980 inches minimum and 1.040 inches maximum
End Item Identification: fire pumps,fire control system, mk 92 (fcs),systems, 02n2,countermeasure set, an/slq-32,support equipment, b-52 aircraft, missile, air-to-air, sparrow (aim-7), sonar acoustic miscellaneous,systems, jp-5aviation fuels,torpedo systems, mk 46
Material Transparency: opaque
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Skirt Outside Diameter: 1.345 inches maximum
Skirt Design: nondetachable
Pointer Design: nondetachable
Style Designator: pointer
Thread Series Designator: unc screw hole

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-00-504-8893	No Name Available	01/01/1960
5355-00-510-6578	No Name Available	04/12/1968
5355-00-538-7474	No Name Available	06/12/1968
5355-00-579-6388	No Name Available	01/01/1963
5355-00-582-7138	No Name Available	01/01/1963
5355-00-584-0069	No Name Available	11/01/1979
5355-00-644-2320	No Name Available	08/05/1968
5355-00-646-4610	No Name Available	07/01/1992
5355-00-665-1319	No Name Available	12/20/1967
5355-00-667-5547	No Name Available	09/11/1970
5355-00-667-9001	No Name Available	01/01/1960
5355-00-668-4042	No Name Available	04/21/1969
5355-00-668-6130	No Name Available	06/21/1971
5355-00-682-6639	No Name Available	12/24/1967
5355-00-753-5271	No Name Available	06/21/1971
5355-00-792-3770	No Name Available	02/16/1970
5355-00-794-4445	No Name Available	07/19/1971
5355-00-802-6519	No Name Available	01/01/1960
5355-00-834-8122	No Name Available	01/01/1962

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88-20021-1	Knob
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FAQs

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

What is the FSCG of the NSN 5355-00-559-8943?

The FSCG of the NSN 5355-00-559-8943 is 5355

Does the NSN 5355-00-559-8943 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-559-8943 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 5355-00-559-8943 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-00-559-8943 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 5355-00-559-8943 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963