The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-046-9883, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lynn Electronics Llc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-046-9883 |
| Primary Part Number | 87990 |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Lynn Electronics Llc |
| Status | ACTIVE |
| Removable Piston | NOT PROVIDED |
| Material Document and Classification | 304 ASSN STD SINGLE MATERIAL RESPONSE |
| Gage End Connection Type | FEMALE |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 87990 PRIMARY | Lynn Electronics Llc (USA) |
| Reference | Meaning |
|---|---|
| 87990 | 5/9 Secondary reference U.S. Government activity |
| 639AS1327 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 27201 | 5/9 Secondary reference U.S. Government activity |
| 8431397 | 7/2 Vendor item drawing reference U.S. Government activity |
| 639AS1327 | 5/9 Secondary reference Comarco Inc |
NSN 6685-01-046-9883 is a Dampener,fluid Pressure, manufactured by Lynn Electronics Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-046-9883 has 1 manufacturer part number on file: 87990 (Lynn Electronics Llc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-560-5828. Verify interchangeability with system specifications before substitution.
Key specifications for 87990: Removable Piston: NOT PROVIDED; Material Document and Classification: 304 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 2.312 INCHES NOMINAL IN; Overall Width: 0.875 INCHES NOMINAL IN. 4 specifications are 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.