NSN 6685-00-228-6983 · NIIN 002286983 · Part number 527-D-20
Lawler Manufacturing Company, Inc. · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 75545
Government record, cited
NSN 6685-00-228-6983 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-228-6983. Manufacturer of record part number: 527-D-20.
Also searched as6685-00-228-6983 ·
6685002286983 ·
NIIN 002286983 ·
00-228-6983 ·
FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 75545 · 527-D-20
Operating Temp Rating: 80.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF
Thermostat Type: BELLOWS
Identification
NSN: 6685-00-228-6983
NIIN: 002286983
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 527-D-20
Manufacturer: Lawler Manufacturing Company, Inc.
General Description
The Thermostat,flow Control, cataloged under National Stock Number 6685-00-228-6983, 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 Lawler Manufacturing Company, Inc.. Government technical data includes 8 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
6685-00-228-6983
Primary Part Number
527-D-20
Item Name
Thermostat,flow Control
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer
Lawler Manufacturing Company, Inc.
Status
ACTIVE
Flow Control Device
SOLID EXPANSION
Spring Operated Pressure Relief
NOT PROVIDED
Largest Outside Diameter
1.000 INCHES NOMINAL IN
Mounting Method
FLANGE
Criticality Code Justification
FEAT
Operating Temp Rating
80.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF
Thermostat Type
BELLOWS
Usage Design
CONTROL VALVE CYCLING
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 6685-00-228-6983?
NSN 6685-00-228-6983 is a Thermostat,flow Control, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What part numbers are listed for NSN 6685-00-228-6983?
NSN 6685-00-228-6983 has 1 manufacturer part number on file: 527-D-20 (Lawler Manufacturing Company, Inc.).
What are the specifications of 527-D-20?
Key specifications for 527-D-20: Flow Control Device: SOLID EXPANSION; Overall Height: 12.000 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED; Largest Outside Diameter: 1.000 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 6685-00-228-6983 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.