Procurement & Part Number Decoder
How to Read Brady Part Number Syntax: M21-, THT-, PTL- & LAT- Decoded
Brady's 15,000+ catalog part numbers are not random alphanumeric strings. They follow a precise, logical engineering syntax that embeds printer compatibility, physical dimensions, material B-number, and packaging quantity directly into the SKU.
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1. Visual Anatomy of a Brady SKU
Handheld Cartridge Example
M21-750-499
- M21: BMP21 / M210 portable cartridge
- 750: 0.750 in (3/4") continuous width
- 499: Brady B-499 Nylon Cloth material
Benchtop Die-Cut Roll Example
THT-19-427-1
- THT: 3" core benchtop thermal roll
- 19: Die-cut size #19 (1.0" W x 1.0" H)
- 427: Brady B-427 Self-Laminating Vinyl
- -1: Packaging of 1,000 labels per roll
2. Master Printer Prefix Dictionary
The leading prefix on any Brady part number instantly dictates which printer hardware platforms can physically accept and feed the roll:
| Prefix | Platform Format | Compatible Printers | Description |
|---|---|---|---|
| M21- (e.g. M21-750-499) | Handheld Mobile Cartridges | BMP21, BMP21-PLUS, BMP21-LAB, M210, M211 | Continuous drop-and-click tape cartridges with integrated ribbon and smart-cell chip. |
| THT- (e.g. THT-19-427-1) | Industrial 3" Core Benchtop Rolls | i5100, i7100, BradyPrinter PR Plus, BBP81, Zebra industrial 300/600 DPI | High-volume production die-cut rolls and continuous bulk spools for high-speed benchtop label printers. |
| PTL- / PTLBM- (e.g. PTL-19-427) | TLS / BMP61 Portable Cartridges | BMP61, M610, M611, TLS2200, TLS PC Link | High-density portable die-cut rolls with quick-load core design for field service. |
| M71- / BM71- (e.g. M71-31-427) | BMP71 / M710 Heavy-Duty Field Rolls | BMP71, M710 | Wide-format portable rolls up to 2.0" wide for industrial electrical panel and utility marking. |
| B30- / B33- (e.g. B30-25-423) | BBP33 / i3300 Smart Drop-In Cartridges | i3300, S3100, BBP33, BBP30, BBP35, BBP37 | Smart-chip cartridges with automatic calibration, zero waste, and 5-second material changeover. |
| LAT- (e.g. LAT-19-361-1) | Laser Printable Sheets (8.5" x 11") | Standard Desktop Laser Printers | Full-sheet die-cut label pages for offices, cleanrooms, and low-volume laboratory labeling. |
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