The Slide Release,microscope, cataloged under National Stock Number 6650-01-653-9534, 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 Olympus America Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-653-9534 |
| Primary Part Number | 4-U142 |
| Item Name | Slide Release,microscope |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Olympus America Inc |
| 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 |
|---|---|
| 4-U142 PRIMARY | Olympus America Inc (USA) |
| Reference | Meaning |
|---|---|
| 6640NCM162709 | 5/1 Secondary reference Defense Medical Standardization Board |
| 1401707 | 5/1 Secondary reference U.S. Government activity |
NSN 6650-01-653-9534 is a Slide Release,microscope, manufactured by Olympus America Inc, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-653-9534 has 1 manufacturer part number on file: 4-U142 (Olympus America Inc).
Key specifications for 4-U142: Special Features: SLIDE RELEASE, MICROSCOPE, LEFT, DOUBLE SLIDE FOR OLYMPUS BX43 NSN: 6640-01-652-5240; PRODUCT DEVICE CODE, 15156; Part Name Assigned by Controlling Agency: SLIDE RELEASE, MICROSCOPE; End Item Identification: 6440-01-652-5240; MICROSCOPE, LABORATORY. 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.