3/8 in. Stainless Steel Flare Union
3/8 in. Stainless Steel Flare Union
Backordered at the manufacturer — estimated ship time 2–3 weeks. Need a firm date? Email sales@apexflowsolutions.com
Flat-rate shipping, nationwide- Orders under $100: $9.95
- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
Volume order or crossing a competitor part number? Request a quote — usually answered the same business day.
The 3/8 in. Stainless Steel Flare Union is a 316 stainless steel SAE 45° flare tee fitting that creates a branch connection off a main tubing or hose run. 316 stainless steel construction provides excellent corrosion resistance for chemical, marine, and aggressive process environments.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Connection Type | SAE 45° flare |
| Shape | Tee |
| End Connections | See product title for sizes |
| Pressure Rating | 800 WOG |
| Temperature Range | −20°F to 250°F (nylon/poly) / −20°F to 366°F (brass/SS) |
Key Features
- 316 stainless steel — compatible with chlorinated water, mild acids, and marine environments
- Non-magnetic; suitable for hygienic and food-adjacent applications
- SAE 45° flare — metal-to-metal seal requires no sealant or thread tape
- Resists vibration, thermal cycling, and high-pressure pulsation
- Meets SAE J513; compatible with copper and aluminum refrigerant tubing
- Creates branch without cutting or rerouting main supply line
Common Applications
Used in refrigeration line sets, HVAC equipment connections, natural gas and propane appliance connectors, and high-vibration applications where compression fittings may loosen. The metal-to-metal flare seat is the most vibration-resistant tube connection available.
Technical Resources
- SAE 45° vs. Inverted Flare — Identification Guide — Critical identification guide
- NPT vs. BSPP vs. JIC Thread Guide — Thread ID reference
- Brass Fitting Types and Sizes Guide — All fitting styles explained
Cross-References
This part is an equivalent for industry part number 3004. Searching one of those? This is your match.