The Shaft,shouldered, cataloged under National Stock Number 3040-01-484-9634, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-484-9634 |
| Primary Part Number | 122-6602811 PC 1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End Grooved Flat Length | 0.5000 INCHES NOMINAL IN |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 6 |
| First End Diameter | 8.4980 INCHES MINIMUM AND 8.5000 INCHES MAXIMUM IN |
| Second End Distance From End to Flat | 0.7500 INCHES NOMINAL IN |
| Second End Diameter | 8.2490 INCHES MINIMUM AND 8.2500 INCHES MAXIMUM IN |
| Largest Step Diameter | 8.9375 INCHES NOMINAL IN |
| Special Test Features | MAGNETIC PARTICLE TESTED (MT) IN ACCORDANCE WITH REFERENCE NUMBER 6, AFTER FINAL MACHINING. INDICATIONS SHALL NOT EXCEED 0.1250 INCHES IN LENGTH OR ANY 6 SQUARE INCHES AREA THAT EXHIBITS TEN OR MORE DEFECTS OF LESS THAN 0.1250 INCHES IN LENGTH. LARGE DEFECTS MAY BE REPAIRED BY WELDING IN |
| Second End Distance From Keyway Center to End | 5.0000 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 2.0000 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-24093 CL-E TYPE I, II, OR III MIL SPEC SINGLE MATERIAL RESPONSE OR AISI 4140 OR B7 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Grooved Flat Depth | 1.1250 INCHES NOMINAL IN |
| Second End Style | FLAT GROOVE AND WOODRUFF KEYWAY |
| Material | STEEL |
| External Keyway Length | 7.0000 INCHES NOMINAL SECOND END 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 |
|---|---|
| 122-6602811 PC 1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6602811 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-484-9634 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-484-9634 has 1 manufacturer part number on file: 122-6602811 PC 1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-485-0005. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6602811 PC 1: Second End Grooved Flat Length: 0.5000 INCHES NOMINAL IN; Surface Finish: 63.0 MICROINCHES; Step Quantity: 6; First End Diameter: 8.4980 INCHES MINIMUM AND 8.5000 INCHES MAXIMUM IN. 17 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.