The Computer,petroleum Test, cataloged under National Stock Number 6640-00-522-1897, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is J & H Berge, Inc. Dba Lab Mart, the Div the Labmart. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-00-522-1897 |
| Primary Part Number | GPT3012-1 |
| Item Name | Computer,petroleum Test |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | J & H Berge, Inc. Dba Lab Mart, the Div the Labmart |
| Status | ACTIVE |
| General Characteristics Item Description | PLASTIC MATL,7 IN.DIA.,DIRECT-READING,W/O FRACTIONS,CHARTS OR TABLES,W/WINDOWS FOR A.P.I.GRAVITY AND SPECIFIC GRAVITY EQUIVALENTS IN |
| 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 |
|---|---|
| GPT3012-1 PRIMARY | J & H Berge, Inc. Dba Lab Mart, the Div the Labmart (USA) |
| Reference | Meaning |
|---|---|
| 48-299 | 5/9 Secondary reference Manostat Corp |
NSN 6640-00-522-1897 is a Computer,petroleum Test, manufactured by J & H Berge, Inc. Dba Lab Mart, the Div the Labmart, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-00-522-1897 has 1 manufacturer part number on file: GPT3012-1 (J & H Berge, Inc. Dba Lab Mart, the Div the Labmart).
2 possible matches (shared part number, not a government interchangeability claim): 5995-01-042-7743, 5340-01-617-7846. Verify interchangeability with system specifications before substitution.
Key specifications for GPT3012-1: General Characteristics Item Description: PLASTIC MATL,7 IN.DIA.,DIRECT-READING,W/O FRACTIONS,CHARTS OR TABLES,W/WINDOWS FOR A.P.I.GRAVITY AND SPECIFIC GRAVITY EQUIVALENTS IN. 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.