The Plunger Tuning Assemlby, cataloged under National Stock Number 6660-00-318-8367, is classified within Federal Supply Class 6660 (Meteorological Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Viking Technologies, Ltd.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6660-00-318-8367 |
| Primary Part Number | 203939 |
| Item Name | Plunger Tuning Assemlby |
| FSC / FSG | 6660 / 66 — Meteorological Instruments and Apparatus |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| General Characteristics Item Description | 0.875 IN. DIA; 1.312 IN. LONG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 203939 | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| SCB87670 | 3/2 Design control — primary reference U.S. Government activity |
| SCB87670 | 5/9 Secondary reference Smiths Detection Inc. Dba Smiths Detection Inc Casc |
NSN 6660-00-318-8367 is a Plunger Tuning Assemlby, manufactured by Viking Technologies, Ltd., classified under FSC 6660, Meteorological Instruments and Apparatus. Status: active.
NSN 6660-00-318-8367 has 1 manufacturer part number on file: 203939 (Viking Technologies, Ltd.).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-429-1557. Verify interchangeability with system specifications before substitution.
Key specifications for 203939: General Characteristics Item Description: 0.875 IN. DIA; 1.312 IN. LONG IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.