The Plunger,packing, cataloged under National Stock Number 2040-01-491-5017, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-491-5017 |
| Primary Part Number | 123-4498184 PART 55 |
| Item Name | Plunger,packing |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL IS COPPER ALLOY 510 PH BRZ COMP A, MAT REFERENCE QQ-B-750; PLUNGER END IS THREADED AND SLOTTED WITH A SHANK THAT IS .242 INCH DIA AND 2.125 INCH LENGTH. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 123-4498184 PART 55 PRIMARY | Naval Sea Systems Command (USA) |
| 122-4493900 PART 13 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 122-4493900 | D/9 Drawing number reference only Naval Sea Systems Command |
| 123-4498184 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-491-5017 is a Plunger,packing, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-491-5017 has 2 manufacturer part numbers on file: 123-4498184 PART 55 (Naval Sea Systems Command), 122-4493900 PART 13 (Naval Sea Systems Command).
Key specifications for 123-4498184 PART 55: General Characteristics Item Description: MATERIAL IS COPPER ALLOY 510 PH BRZ COMP A, MAT REFERENCE QQ-B-750; PLUNGER END IS THREADED AND SLOTTED WITH A SHANK THAT IS .242 INCH DIA AND 2.125 INCH LENGTH. IN; Overall Length: 2.625 INCHES NOMINAL IN; End Item Identification: AIRCRAFT CARRIER CVAN 68 NON-BALLISTIC DOUBLE DOOR. 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.