Seal Type: 60° cone on BSPP male for metal-to-metal sealing
Thread Type: BSPP (British Standard Parallel Pipe) male x NPT (National Pipe Taper) female
Standard Compliance: Manufactured to BS EN 10277
Temperature Range: -40°C to +120°C (no pressure reduction)
Pressure Ratings:
Proof Pressure: 2× working pressure
Burst Pressure: 4× working pressure
Torque Guidance: Recommended torque values for lightly oiled steel threads
Quality Assurance: ISO 9001-certified manufacturing
Description
This adaptor features a BSPP male thread with a 60° cone sealing face and a fixed NPT female bush, designed for connecting parallel BSPP male fittings to tapered NPT female ports. Manufactured by Burnett & Hillman from high-quality mild steel to BS EN 10277 standards, it provides a robust, leak-proof joint suitable for high-pressure hydraulic and pneumatic applications requiring BSPP to NPT conversions.
Key Features & Benefits
Durable Construction: Strong mild steel for long-lasting, reliable performance
Mixed Thread Compatibility: BSPP male with 60° cone x NPT female for versatile system connections
Fixed Female Bush: Provides straightforward installation and robust fitting integrity
Standard Compliance: Manufactured to BS EN 10277 for dimensional precision
Versatile Application: Suitable for hydraulic and pneumatic systems with mixed thread standards
Quality Manufacturing: Produced under ISO 9001-certified processes for consistent product quality
Downloads
Burnett & Hillman Pressure Guide
SKU
Product Code
Male Thread T1 (")
Female Thread T2 (")
B1 (")
L1 (")
O/L (")
A/F (mm)
379504
4BN0802
1/2
1/8
0.437
0.6
0.97
27
379505
4BN0804
1/2
1/4
0.437
0.6
0.97
27
379506
4BN1604
1
1/4
0.875
0.8
1.28
41
379507
4BN1608
1
1/2
0.875
0.8
1.28
41
379508
4BN2016
1 1/4
1
1.125
0.8
1.3
50
379509
4BN2416
1 1/2
1
1.437
0.85
1.39
55
379510
4BN4032
2 1/2
2
2.205
1
1.8
3.25"
379511
4BN4832
3
2
2.75
1
1.8
95
IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.
If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.
