The Worm Shaft, cataloged under National Stock Number 3040-00-959-2628, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 25 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-959-2628 |
| Primary Part Number | C16804PC55 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Worm Body Length | 2.500 INCHES NOMINAL IN |
| Worm Thread Lead | 1.800 INCHES NOMINAL IN |
| Worm Pitch Diameter | 1.461 INCHES NOMINAL IN |
| Worm Outside Diameter | 1.820 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.8750 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 0.9841 INCHES MINIMUM AND 0.9844 INCHES MAXIMUM FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 0.9841 INCHES MINIMUM AND 0.9844 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.250 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.250 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.094 INCHES NOMINAL SECOND END THIRD PORTION IN |
| End Similarity | NOT IDENTICAL |
| Worm Thread Section Length | 2.500 INCHES NOMINAL IN |
| Worm Helix Angle | 21 DEG 25 MIN |
| Material | STEEL |
| Worm Thread Quantity | 3 |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.1880 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Worm Pressure Angle in Deg | 27.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.813 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.813 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 1.188 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 1.188 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 3.125 INCHES NOMINAL SECOND END THIRD PORTION 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 |
|---|---|
| C16804PC55 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| W65AZX5 | 5/9 Secondary reference Siemens Energy, Inc. |
| W65AZX5 | 3/9 Design control — primary reference Imo Industries Inc Delroyd Worm Gear Div |
| C16804PC55 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 3040-00-959-2628 is a Worm Shaft, manufactured by Circor Pumps North America Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-959-2628 has 1 manufacturer part number on file: C16804PC55 (Circor Pumps North America Llc).
Key specifications for C16804PC55: Shaft Location: BOTH ENDS OF WORM; Worm Body Length: 2.500 INCHES NOMINAL IN; Worm Thread Lead: 1.800 INCHES NOMINAL IN; Overall Length: 9.625 INCHES NOMINAL IN. 25 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.