The Pressure Test Device, cataloged under National Stock Number 6640-01-455-3841, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6640-01-455-3841 |
| Item Name | Pressure Test Device |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Status | ACTIVE |
| Unit of Issue Cube | 0.40 CUBIC FEET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 001 | 3/9 Design control — primary reference Crombie Co the |
| 98-0070 | 5/1 Secondary reference U.S. Government activity |
| C D T DEVICE | 5/9 Secondary reference Crombie Co the |
NSN 6640-01-455-3841 is a Pressure Test Device, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3940-01-458-4432, 8145-01-522-8338. Verify interchangeability with system specifications before substitution.
Key specifications for 6640-01-455-3841: Unit of Issue Cube: 0.40 CUBIC FEET; Special Features: CASE MEASURES APPROX. 11 1/4 BY 11 1/4 BY 5 1/2 IN.; STAINLESS STEEL OUTER CASE, CARRYING HANDLE AND FACE PLATE, ADAPTER STORAGE CLIPS IN LID; OUT-PUT TUBING ATTACHED TO CASE WITH SWIVEL POLY-FLO MALE ELBOWS; 2 PAIRS SANITARY ADAPTERS WHICH CONNECT TO THE DEVICE'S OUT-PUT HOSES BY MINI-QUICK DISCONNECTS; 1 LB. GRADUATIONS ON LARGE GAUGE; LARGE GAUGE RETESTED TO 1/2% ACCURACY; EA UNIT SUPPLIED WITH 1/4 IN. IPS QUICK DISCONNECT FOR THE SUPPLY AIR-HOSE CONNECTION; USED TO TEST THE DIFFERENTIAL CONTROLS ON THE HT/ST PASTEURIZER; ARMY NO. 6640-00-C02-4429 LBS; Part Name Assigned by Controlling Agency: PRESSURE TEST DEVICE 11.25X11.25X5.50IN SS OUTER CASE 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.