NSN 6685-01-662-2939 · NIIN 016622939 · Part number TPI 621
Test Products International Inc. Dba Tpi · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 4MJL8
Government record, cited
NSN 6685-01-662-2939 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-662-2939. Manufacturer of record part number: TPI 621.
Also searched as6685-01-662-2939 ·
6685016622939 ·
NIIN 016622939 ·
01-662-2939 ·
FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 4MJL8 · TPI 621
Manufacturer of record: Test Products International Inc. Dba Tpi
Identification
NSN: 6685-01-662-2939
NIIN: 016622939
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: TPI 621
Manufacturer: Test Products International Inc. Dba Tpi
General Description
The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-662-2939, 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 Test Products International Inc. Dba Tpi. Government technical data includes 4 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
6685-01-662-2939
Primary Part Number
TPI 621
Item Name
Gage,pressure,dial Indicating
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer
Test Products International Inc. Dba Tpi
Status
ACTIVE
Scale Name
LOW/HIGH ZONE PRESSURE
Actuation Type
METERING ELEMENT
Scale Type
DIGITAL
Pointer Color
BLACK
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 6685-01-662-2939?
NSN 6685-01-662-2939 is a Gage,pressure,dial Indicating, manufactured by Test Products International Inc. Dba Tpi, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What part numbers are listed for NSN 6685-01-662-2939?
NSN 6685-01-662-2939 has 1 manufacturer part number on file: TPI 621 (Test Products International Inc. Dba Tpi).
What are the specifications of TPI 621?
Key specifications for TPI 621: Scale Name: LOW/HIGH ZONE PRESSURE; Actuation Type: METERING ELEMENT; Scale Type: DIGITAL; Pointer Color: BLACK. 4 specifications are documented in the U.S. Government catalog.
Is NSN 6685-01-662-2939 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.