The Frame,spectacle, cataloged under National Stock Number 6540-01-147-4675, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6540-01-147-4675 |
| Item Name | Frame,spectacle |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Status | ACTIVE |
| Front Color | BROWN |
| Temple Section Style Designator | CONVENTIONAL ANGLE |
| Style Designator | KEYHOLE BRIDGE WITH RIGID NOSE PADS |
| Lens Style | STANDARD S-10 |
| Temple Core | NOT INCLUDED |
| Bridge Width | 22.0 MILLIMETERS MM |
| Headband | NOT PROVIDED |
| Carrying Case | NOT PROVIDED |
| Material | CELLULOSE ACETATE BRIDGE |
| Material | CELLULOSE ACETATE LENS RIM |
| Material | CELLULOSE ACETATE TEMPLE SECTION |
| Largest Diameter | 50.0 MILLIMETERS NOMINAL MM |
| Smallest Diameter | 40.0 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 50MM EYE X 22MM BRIDGE | 3/1 Design control — primary reference U.S. Government activity |
NSN 6540-01-147-4675 is a Frame,spectacle, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6540-01-272-2097. Verify interchangeability with system specifications before substitution.
Key specifications for 6540-01-147-4675: Front Color: BROWN; Temple Section Style Designator: CONVENTIONAL ANGLE; Style Designator: KEYHOLE BRIDGE WITH RIGID NOSE PADS; Lens Style: STANDARD S-10. 13 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.