Description
The MSA 481742 is the Abrasi-Blast lens cartridge. Sold by the pack. Ships in 1–2 business days; most orders arrive in 3–7 business days. Abrasi-Blast Supplied Air Respirator: every part and NIOSH approval on one page.
MSA 481742 specifications
| Item | Manufacturer data |
|---|---|
| MSA part number | 481742 |
| 481742 | Lens cartridge, 0.12" thick, untempered, laminated, 3 per carton, Heavy blasting (MSA Abrasi-Blast Respirators data sheet 0112-37-MC) |
| 481742 | 0.12" thick, untempered, laminated, 3 per carton - Heavy blasting |
| MSA description | 481742 Lens cartridge 0.12" untempered laminated, 3 per carton, heavy blasting |
| Fits | Abrasi-Blast lens housing |
Source: MSA Abrasi-Blast Respirators data sheet 0112-37-MC; MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC; MSA Abrasi-Blast NIOSH approval insert 10122516; NIOSH Certified Equipment List (November 2026).
Abrasi-Blast Supplied Air Respirator system data
| Item | Manufacturer data |
|---|---|
| Type | SAR (Type CE, continuous flow) / combination SAR+APR (Duo-Flo) |
| Description | Abrasi-Blast Respirators are air-line approved devices with tight-fitting facepieces and durable hoods that provide respiratory and upper body protection for workers engaged in abrasive blasting. Consisting of a hood, facepiece with lens housing, breathing tube, lens cartridge, flow-control device, air-supply hose, and support belt (MSA Abrasi-Blast Respirators data sheet 0112-37-MC) |
| Facepiece | the Abrasi-Blast Respirator uses a tight-fitting, full-face Ultravue Facepiece together with the cover lens housing assembly. (MSA Abrasi-Blast Respirators data sheet 0112-37-MC); Advantage 4000 version per MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC and CEL 19C-0438 |
| Flow | Adjustable Control-Valve Connectors feature a control knob that allows users to vary air flow within NIOSH-required flow rates (4 cfm minimum to 15 cfm maximum). Low-pressure adjustable valve-connectors require inlet pressure between 10 and 15 psig with approved hose length of 8 to 50 feet. High-pressure adjustable valve-connectors require inlet pressure between 35 and 40 psig with approved hose length of 8 to 300 feet. (MSA Abrasi-Blast Respirators data sheet 0112-37-MC) |
| Lens note | MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC prints "3 per cartridge" for 473800 and 481742 where MSA Abrasi-Blast Respirators data sheet 0112-37-MC prints "3 per carton" |
| Approvals datasheet | The Abrasi-Blast Respirator has the following NIOSH/MSHA approvals: Approval TC-19C-161 for Abrasi-Blast Respirator when used with 8 to 50 ft. of MSA air-supply hose at an inlet pressure of 10 to 15 psig. Approval TC-19C-162 for Abrasi-Blast Respirator when used with 8 to 300 ft. of MSA air-supply hose at an inlet pressure of 35 to 40 psig. Duo-Flow Abrasi-Blast Respirator - see NIOSH-approved matrix, PN 818148 (MSA Abrasi-Blast Respirators data sheet 0112-37-MC) |
| Approvals insert | Approval insert 10122516 REV001 rows: 19C-438 CF/SA/SB, 19C-467 CF/SA/SB, 84A-4623 P100/CF/SA/SB, 84A-3744 P100/CF/SA/SB (MSA Abrasi-Blast NIOSH approval insert 10122516); CEL: 19C-0438 Abrasi-Blast Advantage 4000, Continuous Flow, Type CE, Supplied Air Respirator (Abrasive Blasting); 19C-0467 Abasi-Blast Supplied Air Respirator, Type CE, Constant Flow; 84A-4623 Model Abrasi-Blast Advantage 4000, Combination Air Purifying, Type CE, CF, Supplied Air Respirator (P100); 84A-3744 Abrasive blast chin style Gas mask w/ 816255 Ultra Round filter (P100). TC-19C-161 / TC-19C-162 from MSA Abrasi-Blast Respirators data sheet 0112-37-MC are not in the current (non-obsolete) MSA CEL listing |
Source: MSA Abrasi-Blast Respirators data sheet 0112-37-MC; MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC; MSA Abrasi-Blast NIOSH approval insert 10122516; NIOSH Certified Equipment List (November 2026).
Abrasi-Blast lens cartridges and hoods (MSA data sheet)
| Part number | MSA description |
|---|---|
| 473240 | 0.06" thick, tempered, 4 per carton - Light blasting |
| 473798 | 0.09" thick, untempered, 3 per carton - Medium blasting |
| 473800 | 0.09" thick, tempered, 3 per carton - Medium blasting |
| 473802 | 0.12" thick, untempered, laminated, 2 per carton - Heavy blasting |
| 481742 | 0.12" thick, untempered, laminated, 3 per carton - Heavy blasting |
| 468716 | Hypalon hood, waist, 10-15 psig flow-control device, complete assembly |
| 468718 | Hypalon hood, waist, 35-40 psig |
| 468720 | Hypalon hood, shoulder, 10-15 psig |
| 468722 | Hypalon hood, shoulder, 35-40 psig (Standard Constant Flow Abrasi-Blast Respirator Assemblies: includes Hypalon hood, medium facepiece with dual exhalation valve (472666), lens housing, one lens cartridge (four 0.06" untempered glass cover lenses per cartridge), breathing tube (470734), web belt (9961), and adjustable Snap-tite (AL) valve connector socket assembly; order air-supply hose separately) |
| 480699 | Duck cloth chest |
| 480697 | Duck cloth waist |
| 486304 | Neoprene shoulder |
| 486303 | Neoprene waist |
| 486329 | Knit back, Hypalon front, shoulder |
MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC prints "3 per cartridge" for 473800 and 481742 where MSA Abrasi-Blast Respirators data sheet 0112-37-MC prints "3 per carton"
Source: MSA Abrasi-Blast Respirators data sheet 0112-37-MC; MSA Advantage 4000 Abrasi-Blast data sheet 0112-41-MC.
Approvals
The Abrasi-Blast Respirator has the following NIOSH/MSHA approvals: Approval TC-19C-161 for Abrasi-Blast Respirator when used with 8 to 50 ft. of MSA air-supply hose at an inlet pressure of 10 to 15 psig. Approval TC-19C-162 for Abrasi-Blast Respirator when used with 8 to 300 ft. of MSA air-supply hose at an inlet pressure of 35 to 40 psig. Duo-Flow Abrasi-Blast Respirator - see NIOSH-approved matrix, PN 818148 (MSA Abrasi-Blast Respirators data sheet 0112-37-MC)
Approval insert 10122516 REV001 rows: 19C-438 CF/SA/SB, 19C-467 CF/SA/SB, 84A-4623 P100/CF/SA/SB, 84A-3744 P100/CF/SA/SB (MSA Abrasi-Blast NIOSH approval insert 10122516); CEL: 19C-0438 Abrasi-Blast Advantage 4000, Continuous Flow, Type CE, Supplied Air Respirator (Abrasive Blasting); 19C-0467 Abasi-Blast Supplied Air Respirator, Type CE, Constant Flow; 84A-4623 Model Abrasi-Blast Advantage 4000, Combination Air Purifying, Type CE, CF, Supplied Air Respirator (P100); 84A-3744 Abrasive blast chin style Gas mask w/ 816255 Ultra Round filter (P100). TC-19C-161 / TC-19C-162 from MSA Abrasi-Blast Respirators data sheet 0112-37-MC are not in the current (non-obsolete) MSA CEL listing
Source: MSA Abrasi-Blast Respirators data sheet 0112-37-MC; MSA Abrasi-Blast NIOSH approval insert 10122516; NIOSH Certified Equipment List (November 2026).
Assigned protection factor
| Respirator type (OSHA Table 1) | APF |
|---|---|
| Supplied-air respirator, continuous flow, full facepiece | 1000 |
| Supplied-air respirator, continuous flow, helmet/hood (manufacturer-tested to APF 1,000) | 1000 |
Source: OSHA 29 CFR 1910.134 Table 1 (Assigned Protection Factors). The APF applies only when the respirator is used in a program that meets the standard, including fit testing of tight-fitting facepieces (29 CFR 1910.134(f)) and a cartridge change schedule (29 CFR 1910.134(d)(3)(iii)).
Catalog data
| Item | Manufacturer data |
|---|---|
| Thickness | 0.12 in |
| Style | Laminated Lens Cartridge |
| Lens Tint | Clear |
Source: Manufacturer published product data as carried in our catalog.
Replacement laminated lens cartridges for the MSA Abrasi-Blast supplied air hood used in heavy abrasive blasting. Swapping the lens as it pits keeps the operator's view clear.
- 0.12 in thick laminated lens cartridge
- For heavy blasting applications
- Fits MSA Abrasi-Blast supplied air respirators
- 12 lenses per pack
Sold by the pack
One pack holds 12 lenses. The price shown is for the full pack; quantity 1 = 1 pack (12 lenses).
MSA 481742 questions
What air flow does the Abrasi-Blast need? Adjustable Control-Valve Connectors feature a control knob that allows users to vary air flow within NIOSH-required flow rates (4 cfm minimum to 15 cfm maximum). Low-pressure adjustable valve-connectors require inlet pressure between 10 and 15 psig with approved hose length of 8 to 50 feet. High-pressure adjustable valve-connectors require inlet pressure between 35 and 40 psig with approved hose length of 8 to 300 feet. (MSA Abrasi-Blast Respirators data sheet 0112-37-MC)
Guides: supplied-air respirators and Grade D air · assigned protection factors · all respirators by model and hazard.
