What is it made from?

316L stainless steel, forged. The manufacturer states the material on every part in this family.

Which sizes are available?

11 part numbers, 1/16" to 1" tube. The Sizes & Part Numbers tab gives the size and the Swagelok equivalent for each one. Sizes outside the table are quoted on request.

What pressure is it rated to?

The manufacturer publishes tubing ratings from 2,000 to 12,000 psi; the table on this page gives the figure for each size and tube wall. Treat them as the manufacturer's figures, not a guaranteed minimum.

What is the lead time?

Price and lead time are confirmed with the quotation. Tell us if the job is urgent and we will say so before you order.

INDUS HYDRAULICSIH-TF-FB

316 Stainless Double Ferrule Back Ferrule

Name: 316 Stainless Double Ferrule Back Ferrule
Brand: Indus Hydraulics
SKU: IH-TF-FB

Double Ferrule Tube FittingsEx-stock · delivery in 3 days

VIEW 01·Dimension drawing of the 316 stainless double ferrule back ferrule, lettered for the size table

316 Stainless Double Ferrule Back Ferrule in 316L stainless steel, forged. 11 part numbers, 1/16" to 1" tube; the size table gives the size and the Swagelok equivalent for every Indus part number.

Key features

Fitting Form: Back Ferrule
Ferrule System: double ferrule (front and back)
End Connections: tube end (nut and ferrules)
Size Range: 1/16" to 1" tube
Pressure Rating: Rated to the tube: up to 12,000 psi on 316 stainless tubing, by O.D. and wall (manufacturer); see the table

Fitting Form: Back Ferrule
Ferrule System: double ferrule (front and back)
End Connections: tube end (nut and ferrules)

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Product description

The 316 Stainless Double Ferrule Back Ferrule is an instrumentation tube fitting in 316L stainless steel, forged. Its tube end uses a nut with a front and a back ferrule that grip and seal on the outside of the tube; the manufacturer designs it to hold its seal through vibration, temperature swings and pressure cycling in instrument, sampling and control lines.

Construction

Form: Back Ferrule
Ferrule system: double (front and back) ferrule
End 1: tube end (nut and ferrules)
Material: 316L stainless steel, forged
Bar stock: ASTM A479, ASTM A276

Ends and sealing

Tube end: a nut with a front and a back ferrule that grip and seal on the outside of the tube. Fit it to tube of the listed outside diameter; the pressure the joint holds depends on the tube wall.

Sizes

11 part numbers, 1/16" to 1" tube. The Sizes & Part Numbers tab lists the size and the Swagelok equivalent for every one.

End 1: 1/16" tube to 1" tube

Pressure rating

A tube fitting is rated to the tube it is made up on. The manufacturer publishes working pressures for 316 stainless tubing by outside diameter and wall thickness, from 2,000 psi to 12,000 psi (psi, by tube O.D. in inches and wall in inches):

Tube O.D. (in) \ wall (in)	0.010	0.012	0.014	0.016	0.020	0.028	0.035	0.049	0.065	0.083	0.095	0.109	0.120
1/16	5600	6800	8100	9400	12000
1/8						8500	10900
3/16						5400	7000	10200
1/4						4000	5100	7500	10200
5/16							4000	5800	8000
3/8							3300	4800	6500
1/2							2600	3700	5100	6700
5/8								2900	4000	5200	6000
3/4								2400	3300	4200	4900	5800
7/8								2000	2800	3600	4200	4800
1									2400	3100	3600	4200	4700

Swagelok equivalents

For 11 of the 11 sizes the size table gives the Swagelok part number the manufacturer cross-references, so a part number taken off existing equipment can be matched to the Indus part number.

How to order

Quote the Indus part number from the size table. If you only have the fitting, send the thread or tube size on each end and the material, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.

Identification

Parameter	Value
Fitting Form	Back Ferrule
Ferrule System	double ferrule (front and back)

Connections

Parameter	Value
End Connections	tube end (nut and ferrules)

Dimensions

Parameter	Value
Size Range	1/16" to 1" tube

Performance

Parameter	Value
Pressure Rating	Rated to the tube: up to 12,000 psi on 316 stainless tubing, by O.D. and wall (manufacturer); see the table

Construction

Parameter	Value
Material	316L stainless steel, forged
Bar Stock Specification	ASTM A479, ASTM A276

Shipping & lead time

Lead TimeEx-stock from Dubai — delivered within 3 working days in the UAE. Export orders ship on the lane stated for the destination.

Sizes & part numbers

11 sizes

Equivalent to Swagelok SS-1014-1 / SS-104-1, Parker A-LOK #FB#-SS and SSP Duolok ISSD#FB. Every size below prints its equivalent part number beside ours — quote either. Equivalent tube fittings do the same job in the same size, but never mix nuts, ferrules or bodies from two makers in one joint.

Indus part no.	Swagelok equivalent	Parker A-LOK equivalent	SSP Duolok equivalent	Tube size
IH-TF-FB-1	SS-104-1	1FB1-SS	ISSD1FB	1/16" tube
IH-TF-FB-2	SS-204-1	2FB2-SS	ISSD2FB	1/8" tube
IH-TF-FB-3	SS-304-1	3FB3-SS	ISSD3FB	3/16" tube
IH-TF-FB-4	SS-404-1	4FB4-SS	ISSD4FB	1/4" tube
IH-TF-FB-5	SS-504-1	5FB5-SS	ISSD5FB	5/16" tube
IH-TF-FB-6	SS-604-1	6FB6-SS	ISSD6FB	3/8" tube
IH-TF-FB-8	SS-814-1	8FB8-SS	ISSD8FB	1/2" tube
IH-TF-FB-10	SS-1014-1	10FB10-SS	ISSD10FB	5/8" tube
IH-TF-FB-12	SS-1214-1	12FB12-SS	ISSD12FB	3/4" tube
IH-TF-FB-14	SS-1414-1	14FB14-SS	ISSD14FB	7/8" tube
IH-TF-FB-16	SS-1614-1	16FB16-SS	ISSD16FB	1" tube

Indus Hydraulics is not affiliated with Parker A-LOK, SSP Duolok or Swagelok. Parker A-LOK, SSP Duolok or Swagelok part numbers are shown for cross-reference only, so you can order from an existing bill of materials.

This listing is matched size by size to the series below. The size table gives the exact equivalent part number for every Indus part number.

Maker / standard	Series	Sizes matched
Swagelok	SS-1014-1, SS-104-1, SS-1214-1, SS-1414-1, SS-1614-1, SS-204-1, SS-304-1, SS-404-1, SS-504-1, SS-604-1, SS-814-1	11
Parker A-LOK	#FB#-SS	11
SSP Duolok	ISSD#FB	11