The Fiberscope, cataloged under National Stock Number 6650-01-372-4990, 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. Government technical data includes 9 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-372-4990 |
| Primary Part Number | IF11D4-30 |
| Item Name | Fiberscope |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Olympus America Inc |
| Status | ACTIVE |
| Magnification | 1.0X NOMINAL |
| Magnification Type | FIXED |
| Optical Device Type | LENS |
| Focusing Type | ADJUSTABLE |
| Bracket | NOT PROVIDED |
| Carrying Case | PROVIDED |
| Objective Aperture Diameter | 5.9 MILLIMETERS NOMINAL MM |
| Open Drawtube Overall Length | 3000.0 MILLIMETERS NOMINAL MM |
| Scale Markings | NOT PROVIDED |
| 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 |
|---|---|
| IF11D4-30 PRIMARY | Olympus America Inc (USA) |
| Reference | Meaning |
|---|---|
| DAA7221P211-101 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| IF11D4-30 | C/1 Advisory reference — outside the item-of-supply concept Olympus America Inc |
NSN 6650-01-372-4990 is a Fiberscope, manufactured by Olympus America Inc, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-372-4990 has 1 manufacturer part number on file: IF11D4-30 (Olympus America Inc).
Key specifications for IF11D4-30: Magnification: 1.0X NOMINAL; Magnification Type: FIXED; Optical Device Type: LENS; Focusing Type: ADJUSTABLE. 9 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.