The Filter,disk,carbon Dioxide, cataloged under National Stock Number 6640-01-255-9986, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6640-01-255-9986 |
| Primary Part Number | 770001 |
| Item Name | Filter,disk,carbon Dioxide |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division |
| Status | ACTIVE |
| General Characteristics Item Description | REPAIR PART FOR MOD 3158 BACTERIOLOGICAL INCUBATOR 6640-01-251-5472 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 770001 PRIMARY | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division (USA) |
| Reference | Meaning |
|---|---|
| 770001 | 3/9 Design control — primary reference Mallinckrodt Inc Forma Scientific Div |
| NAVAL REPAIR PART | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
NSN 6640-01-255-9986 is a Filter,disk,carbon Dioxide, manufactured by Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-255-9986 has 1 manufacturer part number on file: 770001 (Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-296-8089. Verify interchangeability with system specifications before substitution.
Key specifications for 770001: General Characteristics Item Description: REPAIR PART FOR MOD 3158 BACTERIOLOGICAL INCUBATOR 6640-01-251-5472; Part Name Assigned by Controlling Agency: FILTER DISK CARBON DIOXIDE REPAIR PT FOR NSN 6640-01-251-5472. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.