The Indicator,pressure, cataloged under National Stock Number 6685-01-540-9664, 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 Ministry of Defence, Jsc Scm (supsvcs) Ncb2g Di. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-540-9664 |
| Primary Part Number | 18-1728 |
| Item Name | Indicator,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ministry of Defence, Jsc Scm (supsvcs) Ncb2g Di |
| 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 |
|---|---|
| 18-1728 | Ministry of Defence, Jsc Scm (supsvcs) Ncb2g Di (GBR) |
| Reference | Meaning |
|---|---|
| 18-1728 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-540-9664 is a Indicator,pressure, manufactured by Ministry of Defence, Jsc Scm (supsvcs) Ncb2g Di, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-540-9664 has 1 manufacturer part number on file: 18-1728 (Ministry of Defence, Jsc Scm (supsvcs) Ncb2g Di).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-715-9102. Verify interchangeability with system specifications before substitution.
Key specifications for 18-1728: End Item Identification: TRISTAR AIRCRAFT. 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.