The Crystal Holder Kit, cataloged under National Stock Number 6650-01-505-2157, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Thermo Electron Scientific Instruments Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-505-2157 |
| Primary Part Number | 0045-419 |
| Item Name | Crystal Holder Kit |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Thermo Electron Scientific Instruments Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 0045-419 PRIMARY | Thermo Electron Scientific Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 869-0045-419P | 5/9 Secondary reference Thermo Electron Scientific Instruments Llc |
NSN 6650-01-505-2157 is a Crystal Holder Kit, manufactured by Thermo Electron Scientific Instruments Llc, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-505-2157 has 1 manufacturer part number on file: 0045-419 (Thermo Electron Scientific Instruments Llc).
Key specifications for 0045-419: Special Features: SILICON CRYSTAL WITH HIGH REFRACTIVE INDICES OF 3.4; SAMPLE DEPTH OF PENETRATION 0.85 MICROMETERS; TWO MODES OF OPERATION - VIEW, TO VIEW AND POSITION SAMPLE AND IR, USED FOR DATA COLLECTION; CONTACT ALERT SYSTEM SENSOR PLATE PROVIDED; Part Name Assigned by Controlling Agency: SLIDE-ON ATTENUATED TOTAL REFLECTION MICROSCOPE ACCESSORY WITH SILICON CRYSTAL; End Item Identification: CONTINUUM AND MOMENTUM MICROSCOPES. 0 specifications are 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.