# Thermowell, 3/4" NPT, 304 Stainless Steel, 2.5", 260H Series

![Product image](https://novapart.co/image/farnell:3907553/)

**URL**: https://novapart.co/products/3/4-260H-U21/2-304SS/thermowell-3-4-npt-304-stainless-steel-25-260h
**SKU**: 3/4-260H-U21/2-304SS
**Manufacturer**: OMEGA
**Price**: €78.7000
**Stock**: 10+
**Lead Time**: 71 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3907553/)

**B** 

## **Series 260H Heavy Duty Threaded Well for[1] ⁄4" Diameter Elements** 

## **Application:** 

Standard length,[1] ⁄4" bimetal thermometers. #20-gage thermocouple elements. Unarmored liquid-in-glass test thermometers. Other temperaturesensing elements having 0.252" maximum diameter. 

**Connection Size:** 

3 ⁄4 and 1 NPT are standard. Other thread sizes are available upon request. 

**Protective Coatings for Thermowells:** 

• Resist Corrosion      • For Chemical Baths 

• Color-Coded Sensors for Process Control 

• Available in PFA, Epoxy and other materials Consult Sales Department for complete information **Materials:** 

Brass (ASTM B-16), Carbon Steel (C-1018), Stainless Steel A.I.S.I. 304 & A.I.S.I. 316, Monel[®] . Wells are also available in special materials; prices on request. 

## **Cap and Chain Options:** 

For Brass cap, add suffix “ **-CC-Brass** ” to the end of the model number on your order for an additional cost. For 304 SS cap, add suffix “ **-CC** ” to the end of the model number for an additional cost. 

**==> picture [485 x 346] intentionally omitted <==**

**----- Start of picture text -----**<br>
Series 260H—General Use<br>1 3 / 4  U  INSERTION LENGTH<br>1 / 2  NPSM  [†] 1 THREAD<br>= ALLOW ANCE  Q  DIA.  ro<br>ND @<br>eS Oh es A: Tt 5 / 8  †  NPSM internal pipe<br>DIA.  thread will accept<br>±  0.002  both NPT and NPS<br>it — efi! 0.260 BORE  coo) 9 male threads.<br>P<br>A  STEM LENGTH  1 / 4<br>BRASS PLUG & CHAIN (OPTIONAL)<br>Dimensions: inches<br> To Order  Visit omega.com/series_260h for Pricing and Details Shown close to<br>Ext  Stem  Insert  Shank  actual<br> Thread  Length  Length  Dia.  size.<br>P  Model Number  A  U  Q<br>3 7<br>⁄4 NPT 3/4-260H-U21/2-(*) 4  2 [1] ⁄2 ⁄8<br>3/4-260H-U41/2-(*) 6  4 [1] ⁄2 7⁄8<br>3/4-260H-U71/2-(*) 9  7 [1] ⁄2 7⁄8<br>3/4-260H-U101/2-(*) 12  10 [1] ⁄2 7⁄8<br>7<br>3/4-260H-U131/2-(*) 15  13 [1] ⁄2 ⁄8<br>7<br>3/4-260H-U161/2-(* 18  16 [1] ⁄2 ⁄8<br>3/4-260H-U221/2-(*) 24  22 [1] ⁄2 7⁄8<br>1 NPT 1-260H-U21/2-(*) 4  2 [1] ⁄2 1 [1] ⁄16<br>1-260H-U41/2-(*) 6  4 [1] ⁄2 1 [1] ⁄16<br>1-260H-U71/2-(*) 9  7 [1] ⁄2 1 [1] ⁄16<br>1-260H-U101/2-(*) 12  10 [1] ⁄2 1 [1] ⁄16<br>1-260H-U131/2-(*) 15  13 [1] ⁄2 1 [1] ⁄16<br>1-260H-U161/2-(*) 18  16 [1] ⁄2 1 [1] ⁄16<br>1-260H-U221/2-(*) 24  22 [1] ⁄2 1 [1] ⁄16<br>Metric Models<br>Available!<br>Visit omega.com<br>**----- End of picture text -----**<br>


_*****[Specify material type “]_ _**[304]**[” for 304 stainless steel, ]_ _**[“316” ]**[for 316 stainless steel, ]_ _**[“CS” ]**[for carbon steel or ]_ _**“BRASS”** for brass. PFA coating available._ 

_**Ordering Example: 3/4-260H-U71/2-304** , 304 SS thermowell with[3] ⁄4 NPT external thread, 0.260" internal diameter, 7[1] ⁄2" insertion length and a 9" stem length._ 

**For Assistance in Choosing Head and Well Assemblies, See guide at omega.com. These wells are compatible with OMEGA[®] NB1, NB2; PR-12, PR-14, and NPT-style probes, as well as DialTemp™ Thermometers.** 

**Increase Response Rate! Use OT-201 Conductive Silicon Paste.** 

**Pressure-Temperature Rating–lb Per Square Inch Use OT-201 Conductive Temperature — °F Silicon Paste. Material 70° 200° 400° 600° 800° 1000° 1200°** ~~ee~~ Brass ~~PO~~ 5300 4750 1100 – – – – Carbon Steel ~~es~~ 5950 ~~eee~~ 5750 5450 5250 ~~ee~~ 4000 1750 – ~~es ee~~ **Discount Schedule** A.I.S.I. 304 7800 7050 6400 6150 6000 5190 1875 ~~es ee~~ 1-10.................Net 25-100.......................20% A.I.S.I. 316 7800 7800 7250 7100 6950 5800 2720 11-24..............10% 101 and up....Consult Sales ~~eses~~ Monel ~~eeee~~ 7450 es 6850 es 6150 6100 5940 1750 – _Discounts apply to similar thermowells._ 

**B-22** 



## Links

- [View this product on Novapart](https://novapart.co/products/3/4-260H-U21/2-304SS/thermowell-3-4-npt-304-stainless-steel-25-260h)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/omega/3-4-260h-u21-2-304ss/thermowell-3-4-npt-304-ss-2-5/dp/3907553)
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