NSN 6685-01-256-3349 · NIIN 012563349 · Part number 3879K75
Mcmaster-Carr Supply Co · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 39428
Government record, cited
NSN 6685-01-256-3349 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-256-3349. Manufacturer of record part number: 3879K75.
Also searched as6685-01-256-3349 ·
6685012563349 ·
NIIN 012563349 ·
01-256-3349 ·
FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 39428 · 3879K75
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 3879K75
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Probe,humidity-Temperature, cataloged under National Stock Number 6685-01-256-3349, 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 Mcmaster-Carr Supply Co. 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
6685-01-256-3349
Primary Part Number
3879K75
Item Name
Probe,humidity-Temperature
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
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 6685-01-256-3349?
NSN 6685-01-256-3349 is a Probe,humidity-Temperature, manufactured by Mcmaster-Carr Supply Co, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What part numbers are listed for NSN 6685-01-256-3349?
NSN 6685-01-256-3349 has 1 manufacturer part number on file: 3879K75 (Mcmaster-Carr Supply Co).
What are the specifications of 3879K75?
Key specifications for 3879K75: Special Features: STAINLESS STEEL;1/8 IN.DIA BY 4 IN.LONG; IN. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6685-01-256-3349 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.