The Manometer,u-Tube, cataloged under National Stock Number 6685-01-253-8035, 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 The Hiller Companies Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-253-8035 |
| Primary Part Number | 8068701 |
| Item Name | Manometer,u-Tube |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | The Hiller Companies Llc |
| Status | ACTIVE |
| Indicator Type | ONE LIQUID |
| Equalizing Valve | NOT PROVIDED |
| Indicating Liquid for Which Designed | WATER |
| Indicating Liquid | NOT PROVIDED |
| Connection Type | ELASTIC TUBING |
| Accessory Components and Quantity | WRENCH |
| Connection Facility Type | EXTERNAL |
| Connection Location | TOP |
| Control Valve | NOT PROVIDED |
| 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 |
|---|---|
| 8068701 | The Hiller Companies Llc (USA) |
| Reference | Meaning |
|---|---|
| 68100B | 3/9 Design control — primary reference Kidde Fire Fighting Inc Dba Kidde Fire Fighting Div Powhatan/automatic Sprinkler |
| 68-100B | 5/9 Secondary reference Badger Fire Protection Inc |
NSN 6685-01-253-8035 is a Manometer,u-Tube, manufactured by The Hiller Companies Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-253-8035 has 1 manufacturer part number on file: 8068701 (The Hiller Companies Llc).
Key specifications for 8068701: Indicator Type: ONE LIQUID; Equalizing Valve: NOT PROVIDED; Indicating Liquid for Which Designed: WATER; Indicating Liquid: NOT PROVIDED. 9 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.