The Plug,sight Glass, cataloged under National Stock Number 1615-01-308-9451, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Plug,sight Glass |
| FSC / FSG | 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components (FSG 16) |
| Manufacturers | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286) |
| Parameter | Value |
|---|---|
| NSN | 1615-01-308-9451 |
| Primary Part Number | 2D811 |
| Item Name | Plug,sight Glass |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2D811 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 1615PL1939944 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2D811 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1615-01-308-9451 is a Plug,sight Glass, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
NSN 1615-01-308-9451 has 1 manufacturer part number on file: 2D811 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
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.