The Shaft,shouldered, cataloged under National Stock Number 3040-00-398-5276, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-398-5276 |
| Primary Part Number | CS4320-0322 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Second End External Thread Length | 0.438 INCHES NOMINAL IN |
| Step Quantity | 5 |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 1.625 INCHES NOMINAL IN |
| First End External Thread Length | 0.312 INCHES NOMINAL IN |
| First End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Second End Keyway Width | 0.1880 INCHES NOMINAL IN |
| First End Keyway Depth | 0.156 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.125 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 0.875 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 3.375 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.3120 INCHES NOMINAL 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 |
|---|---|
| CS4320-0322 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 986-676PC7 | 5/9 Secondary reference U.S. Government activity |
| 08-948-385PC1 | 5/9 Secondary reference U.S. Government activity |
| 983-535PC7 | 5/9 Secondary reference U.S. Government activity |
| 08-948-385-00-001 | 5/9 Secondary reference U.S. Government activity |
| 950-78PC7 | 5/9 Secondary reference U.S. Government activity |
| 950-432PC7 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-398-5276 is a Shaft,shouldered, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-398-5276 has 1 manufacturer part number on file: CS4320-0322 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
Key specifications for CS4320-0322: Second End External Thread Length: 0.438 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.3750 INCHES NOMINAL IN. 16 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.