The Diaphragm, cataloged under National Stock Number 6685-00-678-0299, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-678-0299 |
| Item Name | Diaphragm |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | NEOPRENE NYLON BASE 2.250 IN. DIA,0.015 IN. MIN 0.093 IN. MAX THK,12 HOLES 0.188 IN. DIA SPACED ON 1.562 IN. DIA BOLT CIRCLE,CENTER HOLE 0.250 IN. DIA,2 HOLES 0.125 IN. DIA ON 0.688 IN. DIA BOLT CIRCLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1892-9 | 5/9 Secondary reference General Regulator Corp. Dba Accudriv |
| 1842-9 | 3/9 Design control — primary reference General Regulator Corp. Dba Accudriv |
NSN 6685-00-678-0299 is a Diaphragm, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5998-00-886-3941, 5935-01-073-2597, 7930-01-083-9779. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-678-0299: General Characteristics Item Description: NEOPRENE NYLON BASE 2.250 IN. DIA,0.015 IN. MIN 0.093 IN. MAX THK,12 HOLES 0.188 IN. DIA SPACED ON 1.562 IN. DIA BOLT CIRCLE,CENTER HOLE 0.250 IN. DIA,2 HOLES 0.125 IN. DIA ON 0.688 IN. DIA BOLT CIRCLE IN; End Item Identification: F D TURBINE STEAM VALVE ACTUATOR 3295367 BUSHIPS. 1 specification is 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.