The Rod,piston, cataloged under National Stock Number 2040-01-138-2156, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-138-2156 |
| Primary Part Number | 522-4674924 ITEM 6 |
| Item Name | Rod,piston |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL-COPPER-ALUMINUM QQ-N-286 CL A,12 FT 7.560 IN. LG,2.873 IN. DIA,ONE END CHAMFERED WITH 1.000 IN. DIA HOLE PERPENDICULAR TO LG,OPPOSITE END THREADED 2.250-12 UN-3B 1.750 IN. DEEP IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 522-4674924 ITEM 6 PRIMARY | Naval Sea Systems Command (USA) |
NSN 2040-01-138-2156 is a Rod,piston, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-138-2156 has 1 manufacturer part number on file: 522-4674924 ITEM 6 (Naval Sea Systems Command).
Key specifications for 522-4674924 ITEM 6: General Characteristics Item Description: NICKEL-COPPER-ALUMINUM QQ-N-286 CL A,12 FT 7.560 IN. LG,2.873 IN. DIA,ONE END CHAMFERED WITH 1.000 IN. DIA HOLE PERPENDICULAR TO LG,OPPOSITE END THREADED 2.250-12 UN-3B 1.750 IN. DEEP 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 2040-01-138-2156 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.