The Insert,optical,chemical-Biologic, cataloged under National Stock Number 6540-00-935-6573, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-00-935-6573 |
| Item Name | Insert,optical,chemical-Biologic |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Status | ACTIVE |
| Supplementary Features | FOR USE WITH M14A2,M17A1,AND M25 PROTECTIVE MASK; ONE PIECE PLASTIC FRAME; UNIVERSAL SIZE |
| Unit Type | WIDE BRIDGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| MILI36783 | 2/2 Government specification standardization U.S. Government activity |
NSN 6540-00-935-6573 is a Insert,optical,chemical-Biologic, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
Key specifications for 6540-00-935-6573: Supplementary Features: FOR USE WITH M14A2,M17A1,AND M25 PROTECTIVE MASK; ONE PIECE PLASTIC FRAME; UNIVERSAL SIZE; Unit Type: WIDE BRIDGE; Part Name Assigned by Controlling Agency: INSERT OPTICAL CHEMICAL-BIOLOGICAL MASK UNIVERSAL SIZE. 2 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.
NSN 6540-00-935-6573 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.