The Dashpot, cataloged under National Stock Number 6645-01-497-1998, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-497-1998 |
| Item Name | Dashpot |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Special Markings | VERIFICATION OF CHEMICAL AND MECHANICAL PROPERTY TEST REPORTS AND MARKING REQUIREMENTS IN ACCORDANCE WITH NAVSEA 0900-LP-016-8081 |
| Material | NICKEL AND COPPER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6744234 ITEM 9 | 5/9 Secondary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
| H5132309 | 3/9 Design control — primary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
| 6744234 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 6645-01-497-1998 is a Dashpot, classified under FSC 6645, Time Measuring Instruments. Status: active.
Key specifications for 6645-01-497-1998: Overall Length: 3.810 INCHES NOMINAL IN; Overall Width: 0.313 INCHES NOMINAL IN; End Item Identification: SSN 688 CLASS SUBMARINE 751 AND LATER NO 1 AND 2 PERISCOPE SYSTEM FAIRING HOIST CYLINDER BASE DETAILS; Special Markings: VERIFICATION OF CHEMICAL AND MECHANICAL PROPERTY TEST REPORTS AND MARKING REQUIREMENTS IN ACCORDANCE WITH NAVSEA 0900-LP-016-8081. 2 specifications are 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.