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Asimeto Ring Thread Gauge (NoGo) - BSP (G) - Right Hand - 6g - 3/8 x 19

SKU:690-04-4

The Asimeto Ring Thread Gauge (NoGo) for BSP (G) and BSPP fittings is a precision test tool designed for technicians, machinists, and quality-control specialists who work with pipe fittings. It qu... Read more ↓
Thread FormBSP (G)
Size3/8
Pitch19
Gauge TypeRing Gauge (NoGo)
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£57.15
Prices shown ex. VAT
4 weeks estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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Description

The Asimeto Ring Thread Gauge (NoGo) for BSP (G) and BSPP fittings is a precision test tool designed for technicians, machinists, and quality-control specialists who work with pipe fittings. It quickly verifies external threads on 3/8 in diameter, 19 TPI, right-hand BSP/BSPP threads, ensuring a consistent, leak-free fit.

  • Thread size and standard: 3/8 in diameter, 19 TPI, BSP/BSPP, right-hand threads, conforming to the 6G class.
  • 6G tolerance conformity: Specifically engineered to meet 6G external-thread tolerances for reliable inspection.
  • NOGO verification: Designed as a NoGo gauge to rapidly indicate out-of-tolerance conditions and prevent improper assemblies.
  • Design and construction: Solid ring gauge with a threaded bore crafted to the target thread dimensions for precise engagement.
  • Durable materials: Built from high-quality metals to resist wear in daily workshop use and maintain accuracy over time.
  • Ergonomic handling: Knurled outer rim provides secure grip and smooth alignment during inspection.

Using this gauge streamlines quality control by confirming that BSP and BSPP external threads will mate correctly with the corresponding fittings. The NoGo check helps you reject any part that exceeds tolerance before it goes into production or service, reducing assembly delays, rework, and potential leaks. Its robust build and strict adherence to 6G standards make it a dependable choice for valve, hydraulic, pneumatic, and piping applications where precise thread validation is essential.

Part Numbers

Protool Part Number
690-04-4
Brand
Asimeto
Category
Gauge
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Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Asimeto Ring Gauge - NOGO - BSP/BSPP 6G - 690 Series

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You are viewing 690-04-4. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
690-01-4 1/1628£70.43 In Stock
690-02-4 1/828£61.43 4 weeks
690-03-4 1/419£61.43 In Stock
690-04-4 Viewing3/819£57.15 4 weeks
690-05-4 1/214£78.66 In Stock
690-06-4 5/814£77.85 4 weeks
690-07-4 3/414£70.43 In Stock
690-08-4 7/814£81.00 In Stock
690-09-4 111£89.24 In Stock
690-10-4 1 1/811£99.00 In Stock
690-11-4 1 1/411£109.94 In Stock
690-12-4 1 1/211£111.51 4 weeks
690-13-4 1 3/411£143.24 In Stock
690-14-4 211£144.41 In Stock
690-15-4 2 1/411£206.60 In Stock
690-16-4 2 1/211£263.75 4 weeks
690-17-4 2 3/411£311.49 4 weeks
690-18-4 311£350.60 4 weeks

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