NSA Thermobest G51TCGH07214 Heat-Resistant Gloves
National Safety Apparel Thermobest G51TCGH07214 gloves combine a 22-ounce Thermobest outer material, 12-ounce wool liner and 19-ounce Goldenbest cuff. The yellow, 14-inch glove has a straight thumb and extended wrist coverage for assessed industrial heat-handling tasks. ASA lists this model under SKU SG51TCGH07214.
Key Features
- Layered construction combines outer fabric and insulation.
- Extended cuff adds wrist coverage.
- Straight-thumb design suits general handling motions.
- Exact model documented in the linked NSA sheet.
Applications
Evaluate for hot-material handling, steel mills, furnace maintenance and glass manufacturing. Match protection to contact temperature, exposure duration and the specific process. An industry name alone does not establish suitability.
Heat Performance and Exposure Limits
The linked NSA specification sheet lists ANSI/ISEA 105-2011 Heat Resistance Level 4. Historical manufacturer literature also reports a 500°F contact-heat test. That test temperature is not a guaranteed operating limit, and reported laboratory times must not be used as safe holding times.
Contact pressure, moisture, wear and compressed insulation can change heat transfer. Use tools or handling aids where practical. This documentation does not establish protection from molten-metal splash, radiant heat, electrical hazards or flames for this exact model.
Understanding the Legacy Mechanical Ratings
The NSA sheet lists ANSI/ISEA 105-2011 Cut Level 5, puncture Level 4 and abrasion Level 4, with a cut result of 5,366 grams under ASTM F1790-97. These are legacy ratings, not current A-scale cut classifications. Do not relabel Cut Level 5 as A5 or convert its gram result to another test method.
OSHA Hand-Protection Requirements
OSHA 29 CFR 1910.138 requires appropriate hand protection for hazards including thermal burns and harmful temperature extremes. Selection considers performance, tasks, conditions and duration. OSHA 1910.132(d) requires hazard assessment and proper fit. These are employer duties, not OSHA glove certification.
Choosing Coverage
The extended glove length covers more of the wrist than a short cuff, but sleeve overlap still needs checking through the working range of motion. Trial the fit with the actual workplace tools and heated metal parts. Avoid compressing the liner with an overly tight fit, and follow workplace restrictions around moving equipment.
Inspection and Selection
Check for thinning fabric, torn seams, contamination and damaged insulation before use. Do not use wet or damaged gloves for hot handling. Follow the supplied product label for care. Confirm the delivered glove’s model and current ratings when establishing workplace selection criteria.
Manufacturer Specification Sheet
View the NSA G51TCGH07214 specification sheet (PDF). This manufacturer-authored document is hosted by a distributor and reports ANSI/ISEA 105-2011 ratings.
FAQ: Thermobest Gloves
Can I hold 500°F material safely?
No universal safe holding time is established.
Is legacy Cut Level 5 the same as A5?
No. Different standard editions and test methods apply.
Is this an aluminized glove?
The linked model sheet does not list an aluminized back.
What is the lining?
The specification sheet lists a 12-ounce wool liner.
