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1/4 in. Tube Nut 316 Stainless Steel Hydraulic JIC 37° Tube Fitting

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SKU:
BFOSS318-04
MPN:
SS318-04
Availability:
Available
Weight:
0.03 LBS
$3.06
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Description

The hydraulic tube fittings conform to the performance requirements specified in SAE J514, SAE J518, SAE J1453, SAE J1926/ISO 11926 and related standards. The working pressure ratings listed below are based on a 4:1 design factor for minimum burst. As specified in SAE J514, these are dynamic pressure ratings and the fittings are capable of passing a cyclic endurance (impulse) test for one million cycles at 133 % of the corresponding working pressure. The rated working pressure for any fitting is based on the lowest pressure rated fitting end.

For example, a fitting may include one -4 (1/4") male 37-degree tube end and one -6 (3/8") male pipe end. From the tables below, the rated working pressure for the -4 male 37-degree tube end is 34.5 MPa (5,000 psi) and the rated working pressure of the -6 (3/8") male pipe end is 21 MPa (3,000 psi). The rated working pressure of the fining would be 21 MPa (3,000 psi). For proper performance, the design of any hydraulic system should take into consideration the rated working pressures for each of the components of the system, including standard ratings for hose and tubing components and assemblies. For any application, testing should be performed to assure safe and satisfactory performance.

PART(A) FJIC Size(A) ThreadHex(L)
SS318-041/47/16-209/16.622
SS318-063/89/16-1811/16.728
SS318-081/23/4-167/8.850
SS318-105/87/8-141.980
SS318-123/41-1/16-121-1/41.031
SS318-1611-5/16-121-1/21.129
/ SAI: 318-X / SSP: JXN / PARKER: XBTX-SS / AEROQUIP: 259-1290-X /

Pressure Ratings - 37° Flare SAE J514

  • Allowable Working Pressure Ratings (Capable of 4 to 1 Minute Burst)
Nom. SAE Dash SizeNom. Tube OD Inches37° Flare Straight ThreadNom. Pipe SizeSAE St. Threads Union and Bulkhead (Psi)Fittings with Pipe Threads (psi)
2 1/8 5/16-24" 1/8" 5000 5000
3 3/16 3/8"-24 1/8" 5000 5000
4 1/4 7/16"-20 1/8" 5000 5000
5 5/16 1/2"-20 1/8" 5000 5000
6 3/8 9/16"-18 1/4" 5000 5000
8 1/2 3/4"-16 3/8" 4500 4000
10 5/8 7/8"-14 1/2" 3500 3000
12 3/4 1-1/16"-12 3/4" 3500 3000
14 7/8 1-3/16"-12 3/4" 3000 2500
16 1 1-5/16"-12 1" 3000 2000
20 1-1/4 1-5/8"-12 1-1/4" 2500 1150
24 1-1/2 1-7/8"-12 1-1/2" 2000 1000
32 2 2-1/2"-12 2" 1500 1000
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Additional Information

Size (inches):
.250 (1/4")
Material Type:
316 Stainless Steel
Product Type:
JIC Tube Nut
Category:
Hydraulic Adapters
JIC Thread Size:
7/16-20
Weight (lbs):
.03
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