The Coupling,tube Retaining, cataloged under National Stock Number 1660-00-945-9284, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-945-9284 |
| Primary Part Number | 53-81019-7 |
| Item Name | Coupling,tube Retaining |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY MMS132SC 356-T6;3.620 IN. LG OF TUBE;1.100 IN. O/A H;0.980 IN. TUBE OD;0.750 IN. TUBE ID;MTG FLANGE WITH TWO 0.196 IN. MIN 0.202 IN. MAX DIA HOLES SPACED 0.850 IN. C TO C IN |
| 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 |
|---|---|
| 53-81019-7 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 1660-00-945-9284 is a Coupling,tube Retaining, manufactured by The Boeing Company Div Defense, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-945-9284 has 1 manufacturer part number on file: 53-81019-7 (The Boeing Company Div Defense).
Key specifications for 53-81019-7: General Characteristics Item Description: ALUMINUM ALLOY MMS132SC 356-T6;3.620 IN. LG OF TUBE;1.100 IN. O/A H;0.980 IN. TUBE OD;0.750 IN. TUBE ID;MTG FLANGE WITH TWO 0.196 IN. MIN 0.202 IN. MAX DIA HOLES SPACED 0.850 IN. C TO C IN. 1 specification is 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 1660-00-945-9284 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.