The Filter Element,air Conditioning, cataloged under National Stock Number 4130-01-643-2539, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Electromet Corporation Dba Electromet Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4130-01-643-2539 |
| Primary Part Number | 810-557D-1 |
| Item Name | Filter Element,air Conditioning |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Electromet Corporation Dba Electromet Corp |
| Status | ACTIVE |
| Material | ALUMINUM FILTERING MEDIUM |
| 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 |
|---|---|
| 810-557D-1 PRIMARY | Electromet Corporation Dba Electromet Corp (USA) |
| Reference | Meaning |
|---|---|
| 06876005 FIND NO. 6 | 5/1 Secondary reference Naval Undersea Warfare Ctr |
| 06876005 | D/9 Drawing number reference only Naval Undersea Warfare Ctr |
NSN 4130-01-643-2539 is a Filter Element,air Conditioning, manufactured by Electromet Corporation Dba Electromet Corp, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-01-643-2539 has 1 manufacturer part number on file: 810-557D-1 (Electromet Corporation Dba Electromet Corp).
Key specifications for 810-557D-1: Part Name Assigned by Controlling Agency: FILTER, EMI (BAY 2); End Item Identification: AN/BLQ-10(V)4; Material: ALUMINUM FILTERING MEDIUM. 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.