The Detector,leak,helium, cataloged under National Stock Number 6635-01-519-8907, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Aerowing Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6635-01-519-8907 |
| Primary Part Number | DET-HWK-82-L |
| Item Name | Detector,leak,helium |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Aerowing Inc |
| Status | ACTIVE |
| Supplementary Features | CONSISTS OF 3 UNITS; R/N 969-4000 HELITEST WING DETECTION UNIT; R/N 969-4100 HELITEST WING VISUAL PROBE UNIT; R/N 969-4300 HELITEST WING UNIT FUEL TOOLING UNIT |
| Functional Description | USED TO PRECISELY LOCATE THE INTERNAL LEAK SOURCES AFTER PREFORMING A CLEAR MAPPING FROM THE OUTSIDE. APPLICATIONS INCLUDE DETECTING LEAKS IN CREW OXYGEN SYSTEMS, FUEL TANKS AND LINES WHILE ON AIRCRAFT |
| 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 |
|---|---|
| DET-HWK | Aerowing Inc (USA) |
| DET-HWK-82-L PRIMARY | Aerowing Inc (USA) |
| 969.4450 NG | Sunaero-Helitest (FRA) |
| Reference | Meaning |
|---|---|
| 969.4450 NG | 5/9 Secondary reference Aerowing Inc |
| PD06WRGBZOENI16 | 5/9 Secondary reference U.S. Government activity |
| HELITEST WING | 5/9 Secondary reference Agilent Technologies, Inc. |
| 9694005 | 5/9 Secondary reference Agilent Technologies, Inc. |
| 969-4450 | 5/9 Secondary reference Agilent Technologies, Inc. |
| 9694450 | 5/9 Secondary reference Aerowing Inc |
NSN 6635-01-519-8907 is a Detector,leak,helium, manufactured by Aerowing Inc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-519-8907 has 3 manufacturer part numbers on file: DET-HWK (Aerowing Inc), DET-HWK-82-L (Aerowing Inc), 969.4450 NG (Sunaero-Helitest).
1 possible match (shared part number, not a government interchangeability claim): 6635-01-593-0881. Verify interchangeability with system specifications before substitution.
Key specifications for DET-HWK-82-L: Supplementary Features: CONSISTS OF 3 UNITS; R/N 969-4000 HELITEST WING DETECTION UNIT; R/N 969-4100 HELITEST WING VISUAL PROBE UNIT; R/N 969-4300 HELITEST WING UNIT FUEL TOOLING UNIT; Special Features: LOWEST DETECTABLE HELIUM CONCENTRATION 2PPM; LOWEST DETECTABLE LEAK RATE 5 X 0.000001 MBAR L/S; RESPONSE TIME 5 SECONDS; PROBE HAS VISUAL BAR GRAPHINDICATING AMOUNT OF HELIUM. INTRINSICALLY SAFE. HOSE LENGTH 90 FEET FT; Functional Description: USED TO PRECISELY LOCATE THE INTERNAL LEAK SOURCES AFTER PREFORMING A CLEAR MAPPING FROM THE OUTSIDE. APPLICATIONS INCLUDE DETECTING LEAKS IN CREW OXYGEN SYSTEMS, FUEL TANKS AND LINES WHILE ON AIRCRAFT. 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 6635-01-519-8907 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.