Thermowell6685-01-539-5282

NSN 6685-01-539-5282 · NIIN 015395282 · Part number S2-12-10.5-O-C

Rdf Corporation · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 02009

Government record, cited

NSN 6685-01-539-5282 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-539-5282. Manufacturer of record part number: S2-12-10.5-O-C.

Also searched as 6685-01-539-5282 · 6685015395282 · NIIN 015395282 · 01-539-5282 · FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 02009 · S2-12-10.5-O-C

Nearby stock numbers ← 6685-01-539-4737 Gage, Pressure, Dial Indicating · 6685-01-539-5288 Gage, Pressure, Dial Indicating →

Features

Thermowell — FSC 6685
Body Diameter: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
Style Designator: THREADED STEPPED SHANK
Body Length: 12.250 INCHES NOMINAL12.250 INCHES NOMINAL IN
Bulb Tip Outside Diameter: 0.500 INCHES NOMINAL IN
External Thread Size: 3/4 NPT3/4 NPT
Bulb Tip Length: 0.250 INCHES NOMINAL IN
Straight Bore Depth: 11.500 INCHES NOMINAL ALL BORES IN

Identification

NSN: 6685-01-539-5282
NIIN: 015395282
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: S2-12-10.5-O-C
Manufacturer: Rdf Corporation

General Description

The Thermowell, cataloged under National Stock Number 6685-01-539-5282, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Rdf Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	6685-01-539-5282
Primary Part Number	S2-12-10.5-O-C
Item Name	Thermowell
FSC / FSG	6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer	Rdf Corporation
Status	ACTIVE
Body Diameter	0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
Style Designator	THREADED STEPPED SHANK
Body Length	12.250 INCHES NOMINAL12.250 INCHES NOMINAL IN
Bulb Tip Outside Diameter	0.500 INCHES NOMINAL IN
External Thread Size	3/4 NPT3/4 NPT
Bulb Tip Length	0.250 INCHES NOMINAL IN
Straight Bore Depth	11.500 INCHES NOMINAL ALL BORES IN
Internal Thread Size	1/2-14 NPT ALL BORES
Material	STEEL CORROSION RESISTING
Bore Inside Diameter	0.257 INCHES MINIMUM AND 0.265 INCHES MAXIMUM ALL BORES IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
S2-12-10.5-O-C PRIMARY	Rdf Corporation (USA)

No interchangeability data on file.

Other items in FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

6685-00-001-1475

6685-00-001-1475 · Item name not on file

6685-00-001-1503

CONTROL,TOTALIZER

6685-00-001-1643

6685-00-001-1643 · Item name not on file

6685-00-001-1711

GAGE,PRESSURE,DIAL INDICATING

6685-00-001-2099

6685-00-001-2099 · Item name not on file

6685-00-001-2100

6685-00-001-2100 · Item name not on file

6685-00-001-2101

6685-00-001-2101 · Item name not on file

6685-00-001-2102

6685-00-001-2102 · Item name not on file

Frequently Asked Questions

What is NSN 6685-01-539-5282?

NSN 6685-01-539-5282 is a Thermowell, manufactured by Rdf Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.

What part numbers are listed for NSN 6685-01-539-5282?

NSN 6685-01-539-5282 has 1 manufacturer part number on file: S2-12-10.5-O-C (Rdf Corporation).

What are the specifications of S2-12-10.5-O-C?

Key specifications for S2-12-10.5-O-C: Body Diameter: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN; Style Designator: THREADED STEPPED SHANK; Overall Length: 12.250 INCHES NOMINAL12.250 INCHES NOMINAL IN; Body Length: 12.250 INCHES NOMINAL12.250 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 6685-01-539-5282 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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