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Brand
Hawke International
Hawke International is a British maker of cable glands, enclosures and connectors for hazardous areas, based in Ashton-under-Lyne near Manchester. William Hawke made the first Hawke cable gland in the 1950s, and the company has manufactured in the Manchester area since 1957. Hubbell acquired Hawke in 2002. Seven Star LLC lists the Hawke 501/421 cable gland for non-armored cable and sources Hawke cable glands and their accessories for electrical and instrument contractors and plant engineers in Oman and the GCC.
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Brand profile
About Hawke International
- Founded
- 1957
- Headquarters
- Ashton-under-Lyne, United Kingdom
- Speciality
- Cable glands for hazardous areas
- Listed with us
- 1 product
Hawke International products by category
Hawke International is a British maker of cable glands, enclosures and connectors for hazardous areas, based in Ashton-under-Lyne near Manchester. William Hawke made the first Hawke cable gland in the 1950s, and the company has manufactured in the Manchester area since 1957. Hubbell acquired Hawke in 2002.
Seven Star LLC lists the Hawke 501/421 cable gland for non-armored cable and sources Hawke cable glands and their accessories for electrical and instrument contractors and plant engineers in Oman and the GCC.
Hawke International company profile
| Manufacturing since | 1957, Manchester area |
|---|---|
| Location | Ashton-under-Lyne, UK |
| Ownership | Hubbell, since 2002 |
| Product families | 501 series Ex d / Ex e cable glands, ICG barrier glands, enclosures, connectors |
Milestones
- 1957: Hawke starts manufacturing cable glands.
- 2002: Hubbell acquires Hawke.
Hawke cable gland families
The numbers tell the types apart. The 501/421 is a single seal compression gland for non-armored elastomer and plastic insulated cables, and the manufacturer lists it as certified Ex d and Ex e for Zone 1 and Zone 2. The 501/453 Universal is the Ex d and Ex e gland for armored and braided cables, with a diaphragm seal for cables that show cold flow. The ICG 653 Universal is the barrier gland, sealed with compound around the individual cores. Bodies come in brass, nickel-plated brass or 316L stainless steel.
Ordering Hawke glands: what we need
Send the gland type, the entry thread (metric or NPT, with size), the cable’s inner sheath and overall diameters, the armor type and wire or braid thickness, the gland material, and accessories such as locknut, earth tag, sealing washer and shroud.
Facts checked against Hawke and Hubbell published histories, October 2026.
Request a Quote for Hawke International Products
Looking for Hawke International parts not listed here, or pricing for a project? Send us the part numbers and quantities. Seven Star LLC sources genuine Hawke International products for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
FAQ
Questions about Hawke International
Common questions about Hawke International equipment, part numbers and supply to Oman and the GCC.
01Can the Hawke 501/421 be used in a hazardous area?
Yes, within its certificate. Hawke lists the 501/421 as a Group II gland certified Ex d and Ex e for Zone 1 and Zone 2 areas, for use with non-armored cable. It is not a barrier gland, and the certificate carries conditions of use, so check it against your cable and the wiring rules that apply at site. For armored cable look at the 501/453 Universal, and for a barrier seal the ICG 653.
02How is the right gland size selected?
From the cable, not from the entry thread alone. Each Hawke size letter covers a range of inner sheath diameters, overall diameters and armor thicknesses. Send those three measurements, or the cable datasheet, plus the entry thread of the enclosure. We check the size letter in the manufacturer's selection table.
03What does cold flow mean for a cable gland?
Soft cable sheaths slowly deform under the constant squeeze of a compression seal, which can loosen the seal over time. Hawke fits the 501/453 Universal with an elastomeric diaphragm seal on the inner sheath and states that it helps eliminate cold flow. That matters for the long-term integrity of flameproof and increased-safety entries.
04What is a Hawke 501/421 gland used for?
The 501/421 is an Ex d and Ex e cable gland for unarmoured, elastomer or plastic sheathed cable. It seals the outer sheath for entry into flameproof or increased safety enclosures.
05Is Seven Star LLC a distributor of Hawke International?
No. Seven Star LLC is an independent industrial supplier based in Muscat. We source Hawke cable glands through commercial channels, check the model or order code against the manufacturer's documentation before ordering, and provide the manufacturer's datasheet and the certificates the manufacturer issues with the order, on request.