The Indicator,pressure, cataloged under National Stock Number 6685-01-487-0739, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-487-0739 |
| Primary Part Number | 4787-G508 |
| Item Name | Indicator,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4787-G508 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 4787 | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
NSN 6685-01-487-0739 is a Indicator,pressure, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-487-0739 has 1 manufacturer part number on file: 4787-G508 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 4787-G508: Special Features: MAX LINE PRESSURE 3000 PSI; MAX OPERATING TEMPERTURE 200 DEGREES F; End Item Identification: FILTER FINK, DEHYDRATOR MACHINE. 0 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.