The Plunger,trash Disposal Unit, cataloged under National Stock Number 4540-01-219-5666, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-01-219-5666 |
| Item Name | Plunger,trash Disposal Unit |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF ALUMINUM-BRONZE ROD,NICKEL-COPPER ALLOY CYLINDER; 0.625 IN. DIA ROD; CYLINDER 2.250 IN. OD,2.052 IN. ID,18.625 IN. LG W/ 0.375 IN. THK,2.750 IN. DIA FLANGE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SSN637-505-2143929 | D/9 Drawing number reference only U.S. Government activity |
| 77656-31X11 PIECE 35 | 3/2 Design control — primary reference U.S. Government activity |
| SSN637-505-2143929 PIECE 35 | 5/2 Secondary reference U.S. Government activity |
| 77656-31X11 | D/9 Drawing number reference only U.S. Government activity |
NSN 4540-01-219-5666 is a Plunger,trash Disposal Unit, classified under FSC 4540, Waste Disposal Equipment. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 2590-01-219-5724, 4540-01-219-6604, 3040-01-220-0971. Verify interchangeability with system specifications before substitution.
Key specifications for 4540-01-219-5666: General Characteristics Item Description: CONSISTS OF ALUMINUM-BRONZE ROD,NICKEL-COPPER ALLOY CYLINDER; 0.625 IN. DIA ROD; CYLINDER 2.250 IN. OD,2.052 IN. ID,18.625 IN. LG W/ 0.375 IN. THK,2.750 IN. DIA FLANGE 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.
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.