The Diaphragm Assembly,, cataloged under National Stock Number 6685-00-110-4873, 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 Unicontrol Inc Hays Cleveland Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Diaphragm Assembly, |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Unicontrol Inc Hays Cleveland Div (CAGE 27847) |
| Parameter | Value |
|---|---|
| NSN | 6685-00-110-4873 |
| Primary Part Number | 2512-039 |
| Item Name | Diaphragm Assembly, |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Unicontrol Inc Hays Cleveland Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 2512-039 PRIMARY | Unicontrol Inc Hays Cleveland Div (USA) |
| Reference | Meaning |
|---|---|
| C100-62 | 5/9 Secondary reference Unicontrol Inc Hays Cleveland Div |
NSN 6685-00-110-4873 is a Diaphragm Assembly,, manufactured by Unicontrol Inc Hays Cleveland Div, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-110-4873 has 1 manufacturer part number on file: 2512-039 (Unicontrol Inc Hays Cleveland Div).
2 possible matches (shared part number, not a government interchangeability claim): 4320-00-115-2457, 3455-01-252-7040. Verify interchangeability with system specifications before substitution.
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.