| Accuracy: 0.5% full scale to ASME B40.1 standard (Grade 2A)
 
 Dial:
 Aluminum alloy, black figures, white background.
 
 Case:
 Molded fiberglass reinforced thermoplastic.
 (Fire retardant and impact resistant)
 
 Pointer:
 Aluminum alloy, painted black.  Micrometer adjustable.
 
 Lens:
 Laminated safety glass (4mm thick).
 
 Lens Ring:
 Molded fiberglass reinforced thermoplastic.
 
 Movement
 Precision stainless steel.
 | Bourdon Tube: 316 Stainless steel (C Form 600 PSI & Below).
 (Spiral 800 PSI & Above).
 
 Liquid Fillable:
 Glycerin(GF), Silicone (SF)
 
 Blow-out Back:
 Molded fiberglass reinforced thermoplastic.
 Hinged for safety (will not become a projectile).
 
 Compensating Diaphragm:
 Unique elastomer with integral "O" ring seal.
 (Field ready for filling, airtight, weatherproof.  No fill kit required.)
 
 Stem and Socket:
 316 Stainless steel (5/8" wrench flats)
 Bottom connection (1/4", 1/2" NPT or Metric)
 High Quality "rolled" threads (Helps to prevent
          galling).
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