The Adapter,vent, cataloged under National Stock Number 1615-01-186-4085, 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 The Boeing Company. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1615-01-186-4085 |
| Primary Part Number | 7-311651014 |
| Item Name | Adapter,vent |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| General Characteristics Item Description | DIMENSIONING AND TOLERANCING PER ANSI Y14.5,MAKE FROM MS21916D-6-4 REDUCER;TOUCH UP WITH FINISH 11 PER EPB4-230;REIDENTIFY WITH 02731-7-311651014 PER HP 8-5,TYPE I CL10 |
| Specification/standard Data | 02371-7-31651014 MANUFACTURERS SPECIFICATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7-311651014 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-311651014 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 1615-01-186-4085 is a Adapter,vent, manufactured by The Boeing Company, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
NSN 1615-01-186-4085 has 1 manufacturer part number on file: 7-311651014 (The Boeing Company).
Key specifications for 7-311651014: General Characteristics Item Description: DIMENSIONING AND TOLERANCING PER ANSI Y14.5,MAKE FROM MS21916D-6-4 REDUCER;TOUCH UP WITH FINISH 11 PER EPB4-230;REIDENTIFY WITH 02731-7-311651014 PER HP 8-5,TYPE I CL10; Specification/standard Data: 02371-7-31651014 MANUFACTURERS SPECIFICATION. 2 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.
NSN 1615-01-186-4085 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.