The Diaphragm Assembly, cataloged under National Stock Number 2040-01-461-8446, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Aef-Performance Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-461-8446 |
| Primary Part Number | 6981356-059 |
| Item Name | Diaphragm Assembly |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Aef-Performance Llc |
| Status | ACTIVE |
| General Characteristics Item Description | SYNTHETIC RUBBER,25.680 IN DIA,8.870 IN CENTER HOLE,CLOSING DIAPHGRAGM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6981356-059 PRIMARY | Aef-Performance Llc (USA) |
| 6981356-059 | Smr Acquisition Llc (USA) |
| Reference | Meaning |
|---|---|
| 119-6981356-059 | 5/9 Secondary reference Smr Acquisition Llc |
| 119-6981356 FIND NO. 54 | 5/1 Secondary reference Naval Sea Systems Command |
| 119-6981356-059 | 5/9 Secondary reference Aef-Performance Llc |
| 6981356-059 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 2040-01-461-8446 is a Diaphragm Assembly, manufactured by Aef-Performance Llc, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-461-8446 has 2 manufacturer part numbers on file: 6981356-059 (Aef-Performance Llc), 6981356-059 (Smr Acquisition Llc).
Key specifications for 6981356-059: General Characteristics Item Description: SYNTHETIC RUBBER,25.680 IN DIA,8.870 IN CENTER HOLE,CLOSING DIAPHGRAGM IN; End Item Identification: LONGITUDINAL STABILITY AND CONE SEAL SYSTEM FOR HOVERCRAFT 087 AND SUBSEQUENY. 1 specification is 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.