The Shaft Log, cataloged under National Stock Number 2040-01-166-0841, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2040-01-166-0841 |
| Primary Part Number | 201-5103118 ITEM 31 |
| Item Name | Shaft Log |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Design Type | ADJUSTABLE SLEEVE |
| Pitch Degree | 20.0 NOMINAL |
| Material Document and Classification | AISI 316L ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A743, CF-8M ASSN STD 2ND MATERIAL RESPONSE HOUSING |
| Base Width | 6.000 INCHES NOMINAL IN |
| Base Length | 21.750 INCHES NOMINAL IN |
| Accommodated Shaft Diameter | 3.000 INCHES NOMINAL IN |
| Material | STEEL COMP 316L OR STEEL UNS J92900 HOUSING |
| 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 |
|---|---|
| 201-5103118 ITEM 31 PRIMARY | Naval Sea Systems Command (USA) |
| 071308-1 PRIMARY | Sea Cure Technology, Inc (USA) |
| Reference | Meaning |
|---|---|
| 071308-1 | 5/9 Secondary reference Uniflite Inc |
NSN 2040-01-166-0841 is a Shaft Log, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-166-0841 has 2 manufacturer part numbers on file: 201-5103118 ITEM 31 (Naval Sea Systems Command), 071308-1 (Sea Cure Technology, Inc).
Key specifications for 201-5103118 ITEM 31: Design Type: ADJUSTABLE SLEEVE; Pitch Degree: 20.0 NOMINAL; Material Document and Classification: AISI 316L ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A743, CF-8M ASSN STD 2ND MATERIAL RESPONSE HOUSING; Base Width: 6.000 INCHES NOMINAL IN. 7 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.