The Blocking Ring Kit,0, cataloged under National Stock Number 6540-01-451-7990, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Gerber Coburn Optical, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-451-7990 |
| Primary Part Number | 178901 |
| Item Name | Blocking Ring Kit,0 |
| FSC / FSG | 6540 / 65 — No Item Name Available |
| Manufacturer | Gerber Coburn Optical, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | BLOCKING RING KIT, OPTICAL FABRICATION; 50 MM; C/O 50 MM RING 1, C RINGS 2; FOR USE IN BLOCKING OPHTHALMIC LENSES WITH THE GERBER STEP ONE SYSTEM MM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 178901 PRIMARY | Gerber Coburn Optical, Inc (USA) |
| CAL 98 LOG | Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA) |
| 97-0865 | Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA) |
NSN 6540-01-451-7990 is a Blocking Ring Kit,0, manufactured by Gerber Coburn Optical, Inc, classified under FSC 6540 (No Item Name Available). Status: active.
NSN 6540-01-451-7990 has 3 cross-referenced part numbers: 178901 (Gerber Coburn Optical, Inc), CAL 98 LOG (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 97-0865 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).
There are 8 known substitutes for 6540-01-451-7990: 6540-01-451-8429, 6540-01-451-8668, 6540-01-451-8725 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 178901: Part Name Assigned by Controlling Agency: BLOCKING RING KIT OPTICAL FABRICATION 50MM U/W GERBER ONE STEP MM; General Characteristics Item Description: BLOCKING RING KIT, OPTICAL FABRICATION; 50 MM; C/O 50 MM RING 1, C RINGS 2; FOR USE IN BLOCKING OPHTHALMIC LENSES WITH THE GERBER STEP ONE SYSTEM MM. 2 total characteristics are documented in the Federal Logistics Information System.