The Case,meteorological Equipment, cataloged under National Stock Number 6660-01-504-5577, is classified within Federal Supply Class 6660 (Meteorological Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Vaisala Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6660-01-504-5577 |
| Primary Part Number | QTR104 |
| Item Name | Case,meteorological Equipment |
| FSC / FSG | 6660 / 66 — Meteorological Instruments and Apparatus |
| Manufacturer | Vaisala Inc. |
| Status | ACTIVE |
| Material | PLASTIC POLYPROPYLENE |
| 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 |
|---|---|
| QTR104SP | Vaisala Oyj (FIN) |
| QTR104 | Vaisala Pty Ltd (AUS) |
| SEA1770-126 | Leidos Australia Pty Limited (AUS) |
| QTR104 PRIMARY | Vaisala Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10379693 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 6660-01-504-5577 is a Case,meteorological Equipment, manufactured by Vaisala Inc., classified under FSC 6660, Meteorological Instruments and Apparatus. Status: active.
NSN 6660-01-504-5577 has 4 manufacturer part numbers on file: QTR104SP (Vaisala Oyj), QTR104 (Vaisala Pty Ltd), SEA1770-126 (Leidos Australia Pty Limited), QTR104 (Vaisala Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-687-8384. Verify interchangeability with system specifications before substitution.
Key specifications for QTR104: Special Features: CASE FOR CEILOMETER P/N CT25KAM AND LIGHTNING DETECTOR P/N SA20M; Part Name Assigned by Controlling Agency: TRANSIT CASE; End Item Identification: NAVAIR (USN/USMC AVIATION (AIR TRAFFIC CONTROL)); Material: PLASTIC POLYPROPYLENE. 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.