Seal Type: 60° Cone on BSPP end, SAE O-Ring Boss (supplied without O-Ring)
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
No O-Ring: This fitting is not supplied with an o-ring and will need to be purchased separately
Description
This reducing adaptor combines an SAE male O-Ring Boss connection with a BSPP male 60° cone thread, supplied without the O-Ring. Manufactured by Burnett & Hillman from high-quality mild steel to BS EN 10277 standards, it is designed to connect different-sized SAE and BSPP fittings securely. Ideal for hydraulic and pneumatic systems, it ensures durable, leak-free sealing in high-pressure applications.
Key Features & Benefits
Material Strength: Strong mild steel construction for high durability
Thread Configuration: Reducing SAE male O-Ring Boss to BSPP male for mixed-size connections
Seal Type: 60° cone on BSPP end, SAE O-Ring Boss design (O-Ring not included)
Standard Compliance: Produced to BS EN 10277 for accurate threading
Application Versatility: Suitable for hydraulic and pneumatic systems requiring size reduction
Temperature Performance: Effective from -40°C to +120°C without pressure reduction
Quality Manufacturing: Manufactured under ISO 9001-certified processes for reliable performance
Downloads
Burnett & Hillman Pressure Guide
SKU
Product Code
T1 (")
T2 (")
B1 (")
B2 (")
L1 (")
L2 (")
O/L (")
A/F (mm)
379325
01329
1/4
1/8
0.063
0.137
0.3
0.44
0.95
14
379327
01300
3/8
1/4
0.125
0.185
0.297
0.45
1.087
19
379329
01309
7/16
1/8
0.172
0.137
0.36
0.44
1
14
379330
01301
7/16
1/4
0.172
0.185
0.36
0.45
1.15
19
379331
01303
7/16
3/8
0.172
0.375
0.36
0.52
1.22
22
379332
01302
7/16
1/2
0.172
0.5
0.36
0.6
1.33
27
379333
01304
1/2
1/4
0.185
-
0.36
0.45
1.06
19
379334
01305
1/2
3/8
0.234
0.375
0.36
0.52
1.25
22
379336
01306
9/16
1/4
0.297
0.185
0.391
0.45
1.151
19
379337
01307
9/16
3/8
0.297
0.312
0.391
0.52
1.221
22
379338
01308
9/16
1/2
0.297
0.437
0.391
0.6
1.391
27
379339
01310
3/4
1/4
0.391
0.185
0.438
0.45
1.188
22
379340
01311
3/4
3/8
0.391
0.312
0.438
0.52
1.258
22
379341
01312
3/4
1/2
0.391
0.437
0.438
0.6
1.468
27
379342
01313
3/4
5/8
0.391
0.593
0.438
0.7
1.578
30
379344
01315
5/8
1/4
0.295
0.25
0.4
0.45
1.19
22
379345
01316
5/8
3/8
0.295
0.375
0.4
0.52
1.2
22
379346
01344
5/8
1/2
0.295
0.5
0.49
0.6
1.48
27
379347
01346
7/8
1/4
0.484
0.185
0.5
0.45
1.25
1"
379348
01317
7/8
3/8
0.484
0.312
0.5
0.52
1.32
1"
379349
01318
7/8
1/2
0.437
-
0.5
0.6
1.4
27
379350
01319
7/8
5/8
0.484
0.562
0.5
0.7
1.63
30
379351
01320
7/8
3/4
0.484
0.659
0.5
0.75
1.68
32
379352
01335
7/8
1
0.484
0.875
0.5
0.8
0.8
41
379353
01321
1 1/16
3/8
0.609
0.312
0.594
0.52
1.594
1.25"
379354
01322
1 1/16
1/2
0.609
0.437
0.594
0.6
1.564
32
379355
01337
1 1/16
5/8
0.609
0.562
0.594
0.7
1.774
1.25"
379356
01324
1 1/16
3/4
0.609
0.659
0.594
0.75
1.744
32
379357
01325
1 1/16
1
0.609
0.875
0.594
0.8
1.864
41
379358
01348
1 1/16
1 1/4
0.609
1.125
0.594
0.8
2.024
50
379359
01345
1 3/16
3/4
0.718
-
0.594
0.75
1.844
1.375"
379360
01343
1 5/16
1/2
0.844
0.437
0.594
0.6
1.694
1.5"
379361
01327
1 5/16
3/4
0.844
0.659
0.594
0.75
1.844
1.5"
379362
01328
1 5/16
1
0.844
-
0.594
0.8
1.794
41
379363
01338
1 5/16
1 1/4
0.844
1.203
0.594
0.8
2.054
50
379364
01330
1 5/16
1 1/2
0.844
1.312
0.594
0.85
2.104
55
379365
01331
1 5/8
3/4
1.078
0.659
0.594
0.75
1.844
46
379366
01332
1 5/8
1
1.078
0.875
0.594
0.8
1.964
50
379367
01333
1 5/8
1 1/4
1.078
1.125
0.594
0.8
1.964
50
379368
01339
1 5/8
1 1/2
1.078
1.312
0.594
0.85
2.104
55
379369
01342
1 7/8
1 1/4
1.312
1.125
0.594
0.8
2.044
55
379370
01340
1 7/8
1 1/2
1.312
1.437
0.594
0.85
1.944
55
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.
