The Ring,collector, cataloged under National Stock Number 3950-01-449-0655, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3950-01-449-0655 |
| Primary Part Number | 2C1-05315 |
| Item Name | Ring,collector |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Overall Diameter | 7.125 INCHES NOMINAL IN |
| General Characteristics Item Description | LEADED GUNMETAL; O/A THICKNESS 1IN.; ONE OF SIX MAIN RINGS IN THE COLLECTOR GEAR ASSEMBLY FOR LAKE SHORE P/N 2E5-00290 SHIPBOARD ELECTRIC CRANE 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 |
|---|---|
| 2D3-04297 ITEM NO. 15 | Lake Shore Systems, Inc. (USA) |
| 2C1-05315 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2D3-04297 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 3950-01-449-0655 is a Ring,collector, manufactured by Lake Shore Systems, Inc., classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-449-0655 has 2 manufacturer part numbers on file: 2D3-04297 ITEM NO. 15 (Lake Shore Systems, Inc.), 2C1-05315 (Lake Shore Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3950-01-449-0661. Verify interchangeability with system specifications before substitution.
Key specifications for 2C1-05315: Overall Diameter: 7.125 INCHES NOMINAL IN; General Characteristics Item Description: LEADED GUNMETAL; O/A THICKNESS 1IN.; ONE OF SIX MAIN RINGS IN THE COLLECTOR GEAR ASSEMBLY FOR LAKE SHORE P/N 2E5-00290 SHIPBOARD ELECTRIC CRANE IN; Special Features: ITEM HAS THREE EQUALLY SPACED 0.6563" DIA THRU HOLES FOR SUPPORT STUDS AND TWO 0.4375 DIA THRU HOLES FOR TERMINAL LUGS; Part Name Assigned by Controlling Agency: MAIN RING. 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.