The Guide,piston Rod, cataloged under National Stock Number 3040-01-489-1807, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-489-1807 |
| Primary Part Number | 7261661 PC 3 |
| Item Name | Guide,piston Rod |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Features Provided | COUNTERBORE |
| Nominal Thread Size | 2.250 INCHES IN |
| Thread Class | 3 |
| Thread Quantity Per Inch | 12 |
| Material | COPPER ALLOY |
| Thread Series Designator | UN |
| 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 |
|---|---|
| 7261661 PC 3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7261661 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-489-1807 is a Guide,piston Rod, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-489-1807 has 1 manufacturer part number on file: 7261661 PC 3 (Naval Sea Systems Command).
Key specifications for 7261661 PC 3: Overall Length: 5.5625 INCHES NOMINAL IN; Features Provided: COUNTERBORE; Nominal Thread Size: 2.250 INCHES IN; Special Features: PART NAME ASSIGNED BY CONTROLLING AGENCY IS PISTON. 6 specifications are 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.