The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-501-0899, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-501-0899 |
| Primary Part Number | 531-7015135 |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material | NICKEL ALLOY |
| Removable Piston | NOT PROVIDED |
| Fluid Type for Which Designed | LIQUID |
| Threaded Direct Pressure Connection | PROVIDED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 531-7015135 | Naval Sea Systems Command (USA) |
| M2940-4-L-B-F-G | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 218026810 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| MIL-PRF-2940D | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| H728-4401-37 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 531-7015135-37 | Naval Sea Systems Command (USA) |
NSN 6685-01-501-0899 is a Dampener,fluid Pressure, manufactured by Naval Sea Systems Command, classified under FSC 6685 (No Item Name Available). Status: active.
NSN 6685-01-501-0899 has 6 cross-referenced part numbers: 531-7015135 (Naval Sea Systems Command), M2940-4-L-B-F-G (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 218026810 (Electric Boat Corporation Div General Dynamics Electric Boat), MIL-PRF-2940D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), H728-4401-37 (Electric Boat Corporation Div General Dynamics Electric Boat) and 1 more.
There are 8 known substitutes for 6685-01-501-0899: 6685-01-481-2073, 6685-01-501-1204, 6685-01-501-1301 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 531-7015135: Material: NICKEL ALLOY; Overall Width: 2.000 INCHES NOMINAL IN; Removable Piston: NOT PROVIDED; Special Features: INLET CONN 7/16-20 UNF-2A EXTERNAL THREAD; OUTLET CONN 7/16-20 UNF-2B INTERNAL THREAD A. 7 total characteristics are documented in the Federal Logistics Information System.