FB300A

View detailed technical data, stock status, and sourcing information for: FB300A

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FB300A
Federal Supply Group
Measuring Tools
Federal Supply Classification
5210 Craftsmen's Measuring Tools
National Stock Number
5210-01-355-2126
Item Name Code
05977
Assigment Date
03/12/1992 (34 years ago)

One or more tempered steel blades (leaves) ground to and marked with their respective thickness and mounted in a holder or encased within a frame or case into which the leaves fold. It is used for checking narrow slots or gaging the clearance between fitted parts. Excludes:blade, thickness gage. See also gage, gap setting.

25 blade quantity, 0.500 inches nominal blade tip width, english measurement system, 2 blade group quantity, 3.250 inches nominal blade length

Product Characteristics

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

Blade Length
3.250 inches nominal
Blade Quantity
25
Measurement System
english
Blade Tip Width
0.500 inches nominal
Blade Group Quantity
2
Blade Lock
included
Blade Thickness
0.0070 inches 2nd blade
Blade Thickness
0.0060 inches 1st blade
Blade Thickness
0.0090 inches 4th blade
Blade Thickness
0.0080 inches 3rd blade
Blade Thickness
0.0110 inches 6th blade
Blade Thickness
0.0100 inches 5th blade
Blade Thickness
0.0130 inches 8th blade
Blade Thickness
0.0140 inches 9th blade
Blade Thickness
0.0120 inches 7th blade
Blade Thickness
0.0160 inches 11th blade
Blade Thickness
0.0170 inches 12th blade
Blade Thickness
0.0150 inches 10th blade
Blade Thickness
0.0190 inches 14th blade
Blade Thickness
0.0180 inches 13th blade
Blade Thickness
0.0210 inches 16th blade
Blade Thickness
0.0220 inches 17th blade
Blade Thickness
0.0200 inches 15th blade
Blade Thickness
0.0240 inches 19th blade
Blade Thickness
0.0230 inches 18th blade
Blade Thickness
0.0260 inches 21st blade
Blade Thickness
0.0270 inches 22nd blade
Blade Thickness
0.0250 inches 20th blade
Blade Thickness
0.0300 inches 25th blade
Blade Thickness
0.0280 inches 23rd blade
Blade Thickness
0.0290 inches 24th blade
Blade Shape
bent end
Special Features
blades bent at 45 deg

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5210-01-029-8448 No Name Available 09/01/1994

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
FB300A Thickness Gage

FAQs

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

What is the FSCG of the NSN 5210-01-355-2126?
The FSCG of the NSN 5210-01-355-2126 is 5210
Does the NSN 5210-01-355-2126 have a Schedule B code assigned?
Yes, the Schedule B code is 9017308000
Does NSN 5210-01-355-2126 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 5210-01-355-2126 contain precious materials?
Item does not contain precious metal.
Does NSN 5210-01-355-2126 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 5210-01-355-2126 was assigned to the Federal Catalog?
It was assigned 34 years ago, on Thu, Mar 12, 1992

Professional Distribution

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  • AS9120 Quality Standards
  • 100% Quality Inspections

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Material 80
New Surplus 1
Total 81
Availability of this item was last updated on: 06/02/2026 11:06 AM EDT. Stock levels and pricing are subject to change.

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