Is the HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 suitable for high-pressure pneumatic systems up to 6000 PSI?

Yes. The HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 is specified for a working pressure of 6000 PSI (414 bar) and is described for general use (air, gas, oil transmission). Its construction.chromium-molybdenum 4130 steel, metal/metal cone sealing with an additional replaceable NBR edge seal.supports high-pressure pneumatic applications by combining robust metal sealing with vibration dampening and seal protection. Ensure correct GW NPT thread installation, use of the complete set (male, female + nut), and that temperature, media compatibility, and dynamic cycling requirements of your specific system are within the connectorâs material and NBR seal limits. For critical or safetyâimportant installations, validate with manufacturer specs, pressure testing, and applicable standards before use.

Can the HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 be used with oil and gas at 6000 PSI while relying on the NBR edge seal?

No. The HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 is rated to 6000 PSI and uses a metal/metal cone seal plus an NBR edge seal. However, relying solely on the NBR edge seal for oil & gas service at 6000 PSI is not advisable: NBR can degrade with certain hydrocarbons, high pressures and temperatures, and the edge seal is described as supplementary (vibration damping/protection) rather than primary pressure containment. Use the metal/metal cone as the primary seal and verify NBR compatibility with the specific fluid, temperature, and duty cycle; for critical 6000 PSI oil & gas applications, consider a full-qualified elastomer or metal seal solution and consult manufacturer certification and pressure/temperature compatibility data before service.

Can the HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 be used submerged in corrosive fluids at 6000 PSI?

Probably not recommended for prolonged submersion in corrosive fluids. Why: The HAMMER LUG connector (set) with GW NPT, 4130 steel, type 602 is designed for general use (air, gas, oil transmission) and is rated to 6000 PSI (414 bar). It has a metal/metal cone sealing surface with an additional edge seal made of NBR (nitrile rubber) that reduces vibration and protects the metal seal against corrosion. However, two key points limit its suitability for prolonged exposure to corrosive fluids: - Material compatibility: The body material is chromium-molybdenum steel 4130. While strong, 4130 is not inherently corrosion-resistant like stainless steel or corrosion-resistant alloys; in corrosive liquids it can corrode unless adequately protected (coatings, sacrificial protection, inhibitors). The product description does not state any corrosion-resistant treatment or specialty plating. - Elastomer compatibility: The edge seal is NBR. Nitrile has limited resistance to many aggressive chemicals, especially certain acids, ketones, chlorinated hydrocarbons, and aromatic hydrocarbons. Prolonged contact with corrosive media can swell, degrade, or lose sealing properties. Use cases where it could work: intermittent exposure to mildly corrosive hydrocarbon-based fluids where 4130 and NBR are compatible, or applications with protective coatings, inhibitors, or where connectors are flushed and maintained frequently. Recommendation: Do not assume safe long-term submersion in corrosive fluids. Consult fluid compatibility charts for 4130 steel and NBR against the specific corrosive fluid, consider a corrosion-resistant material (e.g., stainless steel) and a chemically compatible seal (e.g., FKM, EPDM, PTFE), and consult the manufacturer for confirmation and any available corrosion protection / alternative versions.

Coupling HAMMER LUG (set) with a female NPT thread, steel 4130, type 602

Additional information

Material	CS – steel (cast iron)

Coupling HAMMER LUG type 602 general use (for conveying air, gas, oil). has replaceable a gasket edge (NBR), which reduces vibration flowing medium and constitutes protection for seal (metal/metal) against corrosion. set: part male, female + A nut. color: orange (part male, female), black (A nut). Material: steel chromium-molybdenum 4130. Connection: NPT female. sealing: metal/metal (cone) + additional gasket edge (NBR). pressure: 6000 PSI (414 bar).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HL-FIG0602KG-025	Coupling HAMMER LUG type 602 (Set) 1", NPT female, steel 4130	-	414	In stock	Enquiry
HL-FIG0602KG-038	Coupling HAMMER LUG type 602 (Set) 1.1/2", NPT female, steel 4130	-	414	In stock	Enquiry
HL-FIG0602KG-050	Coupling HAMMER LUG type 602 (Set) 2", NPT female, steel 4130	-	414	In stock	Enquiry
HL-FIG0602KG-075	Coupling HAMMER LUG type 602 (Set) 3", NPT female, steel 4130	-	414	In stock	Enquiry
HL-FIG0602KG-100	Coupling HAMMER LUG type 602 (Set) 4", NPT female, steel 4130	-	414	In stock	Enquiry

Do you need a larger quantity of products or a bespoke quote?

Call us: +48 61 653 02 22 or email us: tubes@tubes-international.com

SEND ENQUIRY

Coupling HAMMER LUG type 602 general use (for conveying air, gas, oil). has replaceable a gasket edge (NBR), which reduces vibration flowing medium and constitutes protection for seal (metal/metal) against corrosion. set: part male, female + A nut. color: orange (part male, female), black (A nut). Material: steel chromium-molybdenum 4130. Connection: NPT female. sealing: metal/metal (cone) + additional gasket edge (NBR). pressure: 6000 PSI (414 bar).