The Ring Assembly,pilot, cataloged under National Stock Number 6685-00-009-8775, 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 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-009-8775 |
| Primary Part Number | 14278-5 |
| Item Name | Ring Assembly,pilot |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| General Characteristics Item Description | 12 IRREGULAR SPACED HOLES,VARIOUS DIA,2 EA NO. 5-40 X 0.312 IN. LG FLAT HEAD STEEL SCREWS,2 EA O-RINGS,1 EA PILOT RING,1 EA NOZZLE IN |
| 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 |
|---|---|
| 14278-5 PRIMARY | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
| Reference | Meaning |
|---|---|
| 14148-69-S | 5/9 Secondary reference Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| 8106-19 | 5/9 Secondary reference Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
NSN 6685-00-009-8775 is a Ring Assembly,pilot, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-009-8775 has 1 manufacturer part number on file: 14278-5 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-611-4715. Verify interchangeability with system specifications before substitution.
Key specifications for 14278-5: General Characteristics Item Description: 12 IRREGULAR SPACED HOLES,VARIOUS DIA,2 EA NO. 5-40 X 0.312 IN. LG FLAT HEAD STEEL SCREWS,2 EA O-RINGS,1 EA PILOT RING,1 EA NOZZLE IN. 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.