What is it made from?

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

What pressure is it rated to?

The manufacturer publishes ASME B31.3 (NPT) ratings from 3,900 to 11,000 psi; the table on this page gives the figure for each size. Treat them as the manufacturer's figures, not a guaranteed minimum.

NPT: taper pipe thread that seals on the thread flanks, with sealant or tape.

Can I match a Parker part number?

Yes, for 30 of the 31 sizes. The size table shows the Parker part number the manufacturer cross-references next to the Indus part number.

Is there a carbon-steel version?

Yes: Male Female Connector m NPT X f NPT, in zinc-plated carbon steel, is listed separately.

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-SS-5406

Stainless Steel NPT Hex Reducer Bushing

Name: Stainless Steel NPT Hex Reducer Bushing
Brand: Indus Hydraulics
SKU: IH-SS-5406

Stainless Steel NPT & NPSM Pipe AdaptersEx-stock · delivery in 3 days

VIEW 01·Dimension drawing of the stainless steel NPT hex reducer bushing, lettered for the size table

Stainless Steel NPT Hex Reducer Bushing in 316L stainless steel, forged. 31 part numbers, 1/4" to 2"; the size table gives the size on each end, dimensions in millimetres and the Parker equivalent for every Indus part number.

Key features

Body Configuration: reducer bushing
Port A Thread: NPT, 1/4" to 2" (1/4-18 to 2-11.5)
Port A Sealing: taper pipe thread that seals on the thread flanks, with sealant or tape
Nominal Size Range: 1/4" to 2"
Max Working Pressure: Up to 11,000 psi, falling with size (ASME B31.3 (NPT), manufacturer); see the table

Body Configuration: reducer bushing
Port A Thread: NPT, 1/4" to 2" (1/4-18 to 2-11.5)
Port A Sealing: taper pipe thread that seals on the thread flanks, with sealant or tape

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Product description

The Stainless Steel NPT Hex Reducer Bushing is a reducer bushing in 316L stainless steel, forged from one piece. It carries an NPT male end and an NPT female end. Stainless steel is chosen where corrosion rules out zinc-plated carbon steel: offshore and marine lines, chemical, fertiliser and petroleum plant, and food, beverage and pharmaceutical process equipment.

Construction

Body: reducer bushing
End 1: NPT male
End 2: NPT female
Material: 316L stainless steel, forged

Ends and sealing

NPT: taper pipe thread that seals on the thread flanks, with sealant or tape; ASME B1.20.1.

Sizes

31 part numbers, 1/4" to 2". The Sizes & Part Numbers tab lists the size on each end, dimensions in millimetres and the Parker equivalent for every one.

End 1: 1/4" NPT (1/4-18) to 2" NPT (2-11.5)
End 2: 1/8" NPT (1/8-27) to 1-1/2" NPT (1-1/2-11.5)

Pressure rating

Manufacturer's published ratings (ASME B31.3 (NPT)), from 3,900 to 11,000 psi depending on size and end:

Size designator	NPT size	Male (psig)	Male (bar)	Female (psig)	Female (bar)
1	1/16	11000	757	6700	461
2	1/8	10000	689	6500	447
4	1/4	8000	551	6600	454
6	3/8	7800	537	5300	365
8	1/2	7700	530	4900	337
12	3/4	7300	502	4600	316
16	1	5300	365	4400	303
20	1 1/4	6000	413	5000	344
24	1 1/2	5000	344	4600	316
32	2	3900	268	3900	268

Parker equivalents

For 30 of the 31 sizes the size table gives the Parker part number the manufacturer cross-references, so a part number taken off existing equipment can be matched to the Indus part number.

Carbon-steel version

The same configuration in zinc-plated carbon steel: Male Female Connector m NPT X f NPT.

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
Body Configuration	reducer bushing

Port A

Parameter	Value
Port A Thread	NPT, 1/4" to 2" (1/4-18 to 2-11.5)
Port A Sealing	taper pipe thread that seals on the thread flanks, with sealant or tape
Port A Gender	male

Port B

Parameter	Value
Port B Thread	NPT, 1/8" to 1-1/2" (1/8-27 to 1-1/2-11.5)
Port B Sealing	taper pipe thread that seals on the thread flanks, with sealant or tape
Port B Gender	female

Dimensions

Parameter	Value
Nominal Size Range	1/4" to 2"

Performance

Parameter	Value
Max Working Pressure	Up to 11,000 psi, falling with size (ASME B31.3 (NPT), manufacturer); see the table

Construction

Parameter	Value
Material	316L stainless steel, forged

Compliance

Parameter	Value
Applicable Standards	ASME B1.20.1

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

31 sizes

Equivalent to Parker 1/2 x 1/4 PTR-SS / 1/2 x 3/8 PTR-SS, Aeroquip 259-2081 and SSP 1/#X#/#PTR / 3/#X#/#PTR (SAE 140140). Every size below prints its equivalent part number beside ours — quote either.

Indus part no.	Parker equivalent	Aeroquip equivalent	SSP equivalent	SAE no.	End 1	End 2	Y (mm)	D1 (mm)	D2 (mm)	L (mm)
IH-SS-5406-04-02	1/4 x 1/8 PTR-SS	259-2081-4-2	1/4X1/8PTR	140140	1/4" NPT (1/4-18)	1/8" NPT (1/8-27)	15.9	7.1	8.4	21.6
IH-SS-5406-06-02	3/8 x 1/8 PTR-SS	259-2081-6-2	3/8X1/8PTR	140140	3/8" NPT (3/8-18)	1/8" NPT (1/8-27)	19	8.4	8.4	21.6
IH-SS-5406-06-04	3/8 x 1/4 PTR-SS	259-2081-6-4	3/8X1/4PTR	140140	3/8" NPT (3/8-18)	1/4" NPT (1/4-18)	19	10.3	11.1	21.6
IH-SS-5406-08-02	1/2 x 1/8 PTR-SS	259-2081-8-2	1/2X1/8PTR	140140	1/2" NPT (1/2-14)	1/8" NPT (1/8-27)	22.2	8.4	8.4	27.9
IH-SS-5406-08-04	1/2 x 1/4 PTR-SS	259-2081-8-4	1/2X1/4PTR	140140	1/2" NPT (1/2-14)	1/4" NPT (1/4-18)	22.2	11.1	11.1	27.9
IH-SS-5406-08-06	1/2 x 3/8 PTR-SS	259-2081-8-6	1/2X3/8PTR	140140	1/2" NPT (1/2-14)	3/8" NPT (3/8-18)	22.2	13.5	14.3	27.9
IH-SS-5406-12-02	3/4 x 1/8 PTR-SS	—	—	140140	3/4" NPT (3/4-14)	1/8" NPT (1/8-27)	28.6	8.4	8.4	29.7
IH-SS-5406-12-04	3/4 x 1/4 PTR-SS	259-2081-12-4	3/4X1/4PTR	140140	3/4" NPT (3/4-14)	1/4" NPT (1/4-18)	28.6	11.1	11.1	29.7
IH-SS-5406-12-06	3/4 x 3/8 PTR-SS	259-2081-12-6	3/4X3/8PTR	140140	3/4" NPT (3/4-14)	3/8" NPT (3/8-18)	28.6	14.3	14.3	29.7
IH-SS-5406-12-08	3/4 x 1/2 PTR-SS	259-2081-12-8	3/4X1/2PTR	140140	3/4" NPT (3/4-14)	1/2" NPT (1/2-14)	28.6	17.9	17.9	29.7
IH-SS-5406-16-02	1 x 1/8 PTR-SS	—	—	140140	1" NPT (1-11.5)	1/8" NPT (1/8-27)	—	—	—	—
IH-SS-5406-16-04	1 x 1/4 PTR-SS	—	1X1/4PTR	140140	1" NPT (1-11.5)	1/4" NPT (1/4-18)	34.9	11.1	11.1	34.5
IH-SS-5406-16-06	1 x 3/8 PTR-SS	259-2081-16-6	1X3/8PTR	140140	1" NPT (1-11.5)	3/8" NPT (3/8-18)	34.9	14.3	14.3	34.5
IH-SS-5406-16-08	1 x 1/2 PTR-SS	259-2081-16-8	1X1/2PTR	140140	1" NPT (1-11.5)	1/2" NPT (1/2-14)	34.9	17.9	17.9	34.5
IH-SS-5406-16-12	1 x 3/4 PTR-SS	259-2081-16-12	1X3/4PTR	140140	1" NPT (1-11.5)	3/4" NPT (3/4-14)	34.9	23	23	34.5
IH-SS-5406-20-04	1 1/4 x 1/4 PTR-SS	—	—	140140	1-1/4" NPT (1-1/4-11.5)	1/4" NPT (1/4-18)	44.4	11.1	11.1	37.3
IH-SS-5406-20-06	1 1/4 x 3/8 PTR-SS	—	—	140140	1-1/4" NPT (1-1/4-11.5)	3/8" NPT (3/8-18)	44.4	14.3	14.3	37.3
IH-SS-5406-20-08	1 1/4 x 1/2 PTR-SS	—	—	140140	1-1/4" NPT (1-1/4-11.5)	1/2" NPT (1/2-14)	44.4	17.9	17.9	37.3
IH-SS-5406-20-12	1 1/4 x 3/4 PTR-SS	259-2081-20-12	1-1/4X3/4PTR	140140	1-1/4" NPT (1-1/4-11.5)	3/4" NPT (3/4-14)	44.4	23	23	37.3
IH-SS-5406-20-16	1 1/4 x 1 PTR-SS	259-2081-20-16	1-1/4X1PTR	140140	1-1/4" NPT (1-1/4-11.5)	1" NPT (1-11.5)	44.4	29	29	37.3
IH-SS-5406-24-04	1 1/2 x 1/4 PTR-SS	—	—	140140	1-1/2" NPT (1-1/2-11.5)	1/4" NPT (1/4-18)	—	—	—	—
IH-SS-5406-24-06	1 1/2 x 3/8 PTR-SS	—	—	140140	1-1/2" NPT (1-1/2-11.5)	3/8" NPT (3/8-18)	50.8	14.3	14.3	39.9
IH-SS-5406-24-08	1 1/2 x 1/2 PTR-SS	—	—	140140	1-1/2" NPT (1-1/2-11.5)	1/2" NPT (1/2-14)	50.8	17.9	17.9	39.9
IH-SS-5406-24-12	1 1/2 x 3/4 PTR-SS	259-2081-24-12	—	140140	1-1/2" NPT (1-1/2-11.5)	3/4" NPT (3/4-14)	50.8	23	23	39.9
IH-SS-5406-24-16	1 1/2 x 1 PTR-SS	259-2081-24-16	1-1/2X1PTR	140140	1-1/2" NPT (1-1/2-11.5)	1" NPT (1-11.5)	50.8	29	29	39.9
IH-SS-5406-24-20	1 1/2 x 1 1/4 PTR-SS	259-2081-24-20	1-1/2X1-1/4PTR	140140	1-1/2" NPT (1-1/2-11.5)	1-1/4" NPT (1-1/4-11.5)	50.8	37.7	37.7	39.9
IH-SS-5406-32-08	—	—	—	140140	2" NPT (2-11.5)	1/2" NPT (1/2-14)	—	—	—	—
IH-SS-5406-32-12	2 x 3/4 PTR-SS	—	—	140140	2" NPT (2-11.5)	3/4" NPT (3/4-14)	—	—	—	—
IH-SS-5406-32-16	2 x 1 PTR-SS	259-2081-32-16	—	140140	2" NPT (2-11.5)	1" NPT (1-11.5)	—	—	—	—
IH-SS-5406-32-20	2 x 1 1/4 PTR-SS	259-2081-32-20	2X1-1/4PTR	140140	2" NPT (2-11.5)	1-1/4" NPT (1-1/4-11.5)	63.5	37.7	37.7	44.4
IH-SS-5406-32-24	2 x 1 1/2 PTR-SS	259-2081-32-24	2X1-1/2PTR	140140	2" NPT (2-11.5)	1-1/2" NPT (1-1/2-11.5)	63.5	44.3	44.3	44.4

End 1 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. End 2 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. Y — Hex across flats — printed "Y HEX" on the manufacturer drawing. D1 — Dimension D1 on the manufacturer dimension drawing. D2 — Dimension D2 on the manufacturer dimension drawing. L — Dimension L on the manufacturer dimension drawing. Ask us for the dimension drawing if you need it stamped.

Every size is available in 316 stainless steel on request — add “-SS” to the part number when you enquire.

Indus Hydraulics is not affiliated with Aeroquip, Parker or SSP. Aeroquip, Parker or SSP 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
Parker	1/2 x 1/4 PTR-SS, 1/2 x 3/8 PTR-SS, x 3/4 PTR-SS, 1/2 x # 1/4 PTR-SS, 1/2 x # PTR-SS, 1/2 x 1/2 PTR-SS, 1/2 x 1/8 PTR-SS, 1/2 x 3/4 PTR-SS, 1/4 x # PTR-SS, 1/4 x 1/2 PTR-SS, 1/4 x 1/4 PTR-SS, 1/4 x 1/8 PTR-SS, 1/4 x 3/4 PTR-SS, 1/4 x 3/8 PTR-SS, 3/4 x 1/2 PTR-SS, 3/4 x 1/4 PTR-SS, 3/4 x 1/8 PTR-SS, 3/4 x 3/8 PTR-SS, 3/8 x 1/4 PTR-SS, 3/8 x 1/8 PTR-SS, x # 1/2 PTR-SS, x # 1/4 PTR-SS, x # PTR-SS, x 1/2 PTR-SS, x 1/4 PTR-SS, x 1/8 PTR-SS, x 3/8 PTR-SS	30
Aeroquip	259-2081	20
SSP	1/#X#/#PTR, 3/#X#/#PTR, #X#/#PTR, #X#-1/#PTR, 1/#X#PTR, 1/#X#-1/#PTR	19
SAE	140140	31

Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations

Also known as

The same part, in the designations used across European and Gulf trade catalogues.

de: NPT Außengewinde Reduzierung
fr: mâle NPT réducteur
es: macho NPT reductor
it: maschio NPT riduzione

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Key features

Product description

Construction

Ends and sealing

Sizes

Pressure rating

Parker equivalents

Carbon-steel version

How to order

Identification

Port A

Port B

Dimensions

Performance

Construction

Compliance

Shipping & lead time

Sizes & part numbers

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