The Control,humidity, cataloged under National Stock Number 6685-01-313-6972, 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 Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-313-6972 |
| Primary Part Number | 5636C |
| Item Name | Control,humidity |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Maximum Overall Width | 11.500 INCHES IN |
| Frequency in Hertz | 48.0 OR 63.0 |
| Maximum Overall Length | 8.875 INCHES IN |
| Maximum Overall Height | 4.250 INCHES IN |
| Power Source | EXTERNAL |
| Operating Temp Range | +0.0 TO 60.0 FAHRENHEIT DEGF |
| Maximum Voltage Rating in Volts | 115.0 AC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4737 PIECE 82 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 5636C PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
NSN 6685-01-313-6972 is a Control,humidity, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-313-6972 has 2 manufacturer part numbers on file: 4737 PIECE 82 (Howell Laboratories Inc Dba Howell Laboratories Inc), 5636C (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 5636C: Maximum Overall Width: 11.500 INCHES IN; Frequency in Hertz: 48.0 OR 63.0; Maximum Overall Length: 8.875 INCHES IN; Maximum Overall Height: 4.250 INCHES IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.