The Lens,light, cataloged under National Stock Number 6210-01-378-8684, is classified within Federal Supply Class 6210 (Indoor and Outdoor Electric Lighting Fixtures) of the Lighting Fixtures and Lamps group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6210-01-378-8684 |
| Item Name | Lens,light |
| FSC / FSG | 6210 / 62 — Indoor and Outdoor Electric Lighting Fixtures |
| Status | ACTIVE |
| Thread Diameter | 0.875 INCHES IN |
| Effective Diameter | 0.844 INCHES NOMINAL IN |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Thread Series | UNS |
| Mounting Method | EXTERNAL THREAD |
| Holder Surface Treatment | NICKEL |
| Style Designator | CYLINDRICAL |
| Surface Condition | SMOOTH FACE |
| Surface Condition | SMOOTH BACK |
| Mounting Device Quantity | 1 |
| Thread Direction | RIGHT-HAND |
| Color | CLEAR LENS |
| Light Transmission Design | TRANSPARENT LENS |
| Thread Class | 2B |
| Material | COPPER ALLOY HOLDER |
| Material | GLASS AND PLASTIC LENS |
| Thread Quantity | 9 PER INCH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| LC38CN1S | 2/2 Government specification standardization U.S. Government activity |
| MIL-L-3661/52 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-3661/52 | 4/1 Identification reference U.S. Government activity |
| MIL-L-3661/52C/LC38CN1S | 5/1 Secondary reference U.S. Government activity |
NSN 6210-01-378-8684 is a Lens,light, classified under FSC 6210, Indoor and Outdoor Electric Lighting Fixtures. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6210-01-400-4196. Verify interchangeability with system specifications before substitution.
Key specifications for 6210-01-378-8684: Thread Diameter: 0.875 INCHES IN; Effective Diameter: 0.844 INCHES NOMINAL IN; Overall Diameter: 1.000 INCHES NOMINAL IN; Thread Series: UNS. 17 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.