Pyrometer, Optical6685-01-487-7905

NSN 6685-01-487-7905 · NIIN 014877905 · Part number RAYNGER MX-4

Raytek Inc · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 30550

Government record, cited

NSN 6685-01-487-7905 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-487-7905. Manufacturer of record part number: RAYNGER MX-4.

Also searched as 6685-01-487-7905 · 6685014877905 · NIIN 014877905 · 01-487-7905 · FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 30550 · RAYNGER MX-4

Nearby stock numbers ← 6685-01-487-7421 Probe, Humidity-Temperature · 6685-01-487-8175 Transmitter, Pressure →

Features

Pyrometer,optical — FSC 6685
Scale Accuracy Rating: PORM 1 PERCENT OF READING
Measurement Type: DIGITAL
Mounting Thread Quantity: 20 PER INCH
Mounting Facility Nominal Screw Thread Diameter: 0.250 INCHES IN
Scale Measurement Range: -30.000 TO 900.000 DEG CELSIUS
Functional Description: USED TO CHECK FOR HOT SPOTS IN ELECTRICAL PANELS, CIRCUIT BREAKERS, GENNERATOR AND GEAR BOXES. MONITOR TEMPERTURES OF GASOLINE AND DIESEL ENGINE CYLINDERS AND RAILROAD AXLES AND BEARING. MONITOR SUPPLY AND RETURN REGISTERS, AIR STRATIFICATION, AND DUCT LEAKAGE. MONITOR FOOD AND PREPARATION STORAGE. CHECKS FOR ICING AND DEICING ON PLANES AND ASPHALT. CHECKS FOR DEPLETED REFRIGERATION MEDIA. USED FOR CHECKING BEARING FAILURES AND MOTOR MISALIGNMENTS AND MANY OTHER USES
1 manufacturer part number on file

Identification

NSN: 6685-01-487-7905
NIIN: 014877905
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: RAYNGER MX-4
Manufacturer: Raytek Inc

General Description

The Pyrometer,optical, cataloged under National Stock Number 6685-01-487-7905, 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 Raytek Inc. Government technical data includes 6 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	6685-01-487-7905
Primary Part Number	RAYNGER MX-4
Item Name	Pyrometer,optical
FSC / FSG	6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer	Raytek Inc
Status	ACTIVE
Scale Accuracy Rating	PORM 1 PERCENT OF READING
Measurement Type	DIGITAL
Mounting Thread Quantity	20 PER INCH
Mounting Facility Nominal Screw Thread Diameter	0.250 INCHES IN
Scale Measurement Range	-30.000 TO 900.000 DEG CELSIUS
Functional Description	USED TO CHECK FOR HOT SPOTS IN ELECTRICAL PANELS, CIRCUIT BREAKERS, GENNERATOR AND GEAR BOXES. MONITOR TEMPERTURES OF GASOLINE AND DIESEL ENGINE CYLINDERS AND RAILROAD AXLES AND BEARING. MONITOR SUPPLY AND RETURN REGISTERS, AIR STRATIFICATION, AND DUCT LEAKAGE. MONITOR FOOD AND PREPARATION STORAGE. CHECKS FOR ICING AND DEICING ON PLANES AND ASPHALT. CHECKS FOR DEPLETED REFRIGERATION MEDIA. USED FOR CHECKING BEARING FAILURES AND MOTOR MISALIGNMENTS AND MANY OTHER USES

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
RAYNGER MX-4 PRIMARY	Raytek Inc (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

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6685-00-001-1503

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6685-00-001-1643

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

6685-00-001-1711

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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 6685-01-487-7905?

NSN 6685-01-487-7905 is a Pyrometer,optical, manufactured by Raytek Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.

What part numbers are listed for NSN 6685-01-487-7905?

NSN 6685-01-487-7905 has 1 manufacturer part number on file: RAYNGER MX-4 (Raytek Inc).

What are the specifications of RAYNGER MX-4?

Key specifications for RAYNGER MX-4: Overall Height: 50.0 MILLIMETERS NOMINAL MM; Scale Accuracy Rating: PORM 1 PERCENT OF READING; Measurement Type: DIGITAL; Overall Length: 200.0 MILLIMETERS NOMINAL MM. 6 specifications are documented in the U.S. Government catalog.

Is NSN 6685-01-487-7905 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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