The Photodiode Circuit, cataloged under National Stock Number 4920-01-059-9954, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Excelitas Technologies Corp. Dba Perkinelmer Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-059-9954 |
| Primary Part Number | HRC2000A |
| Item Name | Photodiode Circuit |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Excelitas Technologies Corp. Dba Perkinelmer Inc |
| Status | ACTIVE |
| General Characteristics Item Description | HYBRID; CONSISTS OF ELECTRO-OPTICAL AMPLIFIER AND ASSOCIATED CIRCUITRY; 12 TERMINALS; 0.550 INCHES NOM DIA; 0.265 INCHES NOM LG IN |
| 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 |
|---|---|
| HRC2000A PRIMARY | Excelitas Technologies Corp. Dba Perkinelmer Inc (USA) |
| Reference | Meaning |
|---|---|
| 21017602-101 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4920-01-059-9954 is a Photodiode Circuit, manufactured by Excelitas Technologies Corp. Dba Perkinelmer Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-059-9954 has 1 manufacturer part number on file: HRC2000A (Excelitas Technologies Corp. Dba Perkinelmer Inc).
Key specifications for HRC2000A: General Characteristics Item Description: HYBRID; CONSISTS OF ELECTRO-OPTICAL AMPLIFIER AND ASSOCIATED CIRCUITRY; 12 TERMINALS; 0.550 INCHES NOM DIA; 0.265 INCHES NOM LG IN. 1 specification is 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.