The Retainer,grease, cataloged under National Stock Number 3950-01-448-9165, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 3 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-448-9165 |
| Primary Part Number | 2B1-05831 |
| Item Name | Retainer,grease |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Overall Diameter | 8.502 INCHES NOMINAL IN |
| General Characteristics Item Description | BRASS CA ALLOY 360; I/D 6.2813IN., THICKNESS 0.125IN. IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 2B1-05831 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 2E3-00306 ITEM NO. 5 | Lake Shore Systems, Inc. (USA) |
NSN 3950-01-448-9165 is a Retainer,grease, manufactured by Lake Shore Systems, Inc., classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-448-9165 has 2 manufacturer part numbers on file: 2B1-05831 (Lake Shore Systems, Inc.), 2E3-00306 ITEM NO. 5 (Lake Shore Systems, Inc.).
Key specifications for 2B1-05831: Overall Diameter: 8.502 INCHES NOMINAL IN; General Characteristics Item Description: BRASS CA ALLOY 360; I/D 6.2813IN., THICKNESS 0.125IN. IN; Special Features: GREASE RETAINER FOR SHAFT BEARINGS OF CRANE AUXILIARY HOIST SAFE LOAD INDICATOR PULLEY; Part Name Assigned by Controlling Agency: GREASE RETAINER. 3 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.