The Ring,shoulder, cataloged under National Stock Number 1650-00-289-7937, 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 Tactair Fluid Controls Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Ring,shoulder |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Tactair Fluid Controls Inc (CAGE 70236) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-289-7937 |
| Primary Part Number | 08-8421-102 |
| Item Name | Ring,shoulder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 08-8421-102 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 8421-102 | 5/9 Secondary reference Tactair Fluid Controls Inc |
| 8421-102 | 5/9 Secondary reference U.S. Government activity |
| 1650PL1624768 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 8421-102 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-00-289-7937 is a Ring,shoulder, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-289-7937 has 1 manufacturer part number on file: 08-8421-102 (Tactair Fluid Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-072-3697, 5330-01-151-5088. 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 1650-00-289-7937 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.