The Clamp Block,line,support, cataloged under National Stock Number 1650-01-170-1209, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Clamp Block,line,support |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | The Boeing Company (CAGE 8V613) |
| Parameter | Value |
|---|---|
| NSN | 1650-01-170-1209 |
| Primary Part Number | 7-311830070 |
| Item Name | Clamp Block,line,support |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7-311830070 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| TA 30500098 | 5/2 Secondary reference U.S. Government activity |
| 7-311830070 | 3/9 Design control — primary reference Mcdonnell Douglas Helicopter Co Inc |
| 10194-2 | 5/2 Secondary reference U.S. Government activity |
NSN 1650-01-170-1209 is a Clamp Block,line,support, manufactured by The Boeing Company, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-170-1209 has 1 manufacturer part number on file: 7-311830070 (The Boeing Company).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-276-5955, 4320-01-419-7905. Verify interchangeability with system specifications before substitution.
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 1650-01-170-1209 has DEMIL Code B. 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.