NSN 3040-01-423-8050 · NIIN 014238050 · Part number 561-6404325-78
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-423-8050 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-423-8050. Manufacturer of record part number: 561-6404325-78.
Also searched as3040-01-423-8050 ·
3040014238050 ·
NIIN 014238050 ·
01-423-8050 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 561-6404325-78 · 211060309 · DF-2018-470 · 211094507 · 561-6404325
General Characteristics Item Description: PART OF HOUSING FOR CONTROL/HELM COLUMN ASSEMBLY
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 3040-01-423-8050
NIIN: 014238050
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 561-6404325-78
Manufacturer: Naval Sea Systems Command
General Description
The Housing Part,mechanical Drive, cataloged under National Stock Number 3040-01-423-8050, 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 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3040-01-423-8050
Primary Part Number
561-6404325-78
Item Name
Housing Part,mechanical Drive
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
General Characteristics Item Description
PART OF HOUSING FOR CONTROL/HELM COLUMN ASSEMBLY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-423-8052561-6404325-110POSSIBLE MATCH
ADAPTER,HOUSING
Possible match (shared part number)Naval Sea Systems Command
3040-01-440-4653561-6404325-190POSSIBLE MATCH
CLAMP,HUB
Possible match (shared part number)Naval Sea Systems Command
3040-01-440-4658561-6404325-191POSSIBLE MATCH
CLAMP,HUB
Possible match (shared part number)Naval Sea Systems Command
2030-01-444-6962211094506POSSIBLE MATCH
STEERING GEAR
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
5365-01-519-2530561-6404325-185POSSIBLE MATCH
SPACER,PLATE
Possible match (shared part number)Naval Sea Systems Command
5365-01-519-6427561-6404325-206POSSIBLE MATCH
SPACER,PLATE
Possible match (shared part number)Naval Sea Systems Command
5365-01-519-6974561-6404325-172POSSIBLE MATCH
SHIM
Possible match (shared part number)Naval Sea Systems Command
5365-01-519-6994561-6404325-184POSSIBLE MATCH
SPACER,PLATE
Possible match (shared part number)Naval Sea Systems Command
3120-01-519-7013561-6404325-187POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
Huntington Ingalls Inc Div Newport News Shipbuilding
561-6404325
D/9Drawing number reference only
Naval Sea Systems Command
Related Parts
3040-01-423-8052POSSIBLE MATCH
ADAPTER,HOUSING
561-6404325-110
3040-01-440-4653POSSIBLE MATCH
CLAMP,HUB
561-6404325-190
3040-01-440-4658POSSIBLE MATCH
CLAMP,HUB
561-6404325-191
2030-01-444-6962POSSIBLE MATCH
STEERING GEAR
211094506
5365-01-519-2530POSSIBLE MATCH
SPACER,PLATE
561-6404325-185
5365-01-519-6427POSSIBLE MATCH
SPACER,PLATE
561-6404325-206
5365-01-519-6974POSSIBLE MATCH
SHIM
561-6404325-172
5365-01-519-6994POSSIBLE MATCH
SPACER,PLATE
561-6404325-184
3120-01-519-7013POSSIBLE MATCH
BUSHING,SLEEVE
561-6404325-187
Frequently Asked Questions
What is NSN 3040-01-423-8050?
NSN 3040-01-423-8050 is a Housing Part,mechanical Drive, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-423-8050?
NSN 3040-01-423-8050 has 2 manufacturer part numbers on file: 561-6404325-78 (Naval Sea Systems Command), 211094507 (Naval Sea Systems Command).
What NSN replaces 3040-01-423-8050?
9 possible matches (shared part number, not a government interchangeability claim): 3040-01-423-8052, 3040-01-440-4653, 3040-01-440-4658. Verify interchangeability with system specifications before substitution.
What are the specifications of 561-6404325-78?
Key specifications for 561-6404325-78: General Characteristics Item Description: PART OF HOUSING FOR CONTROL/HELM COLUMN ASSEMBLY; End Item Identification: NAVY WEAPONS SYSTEM JG, SEAWOLF CLASS SSN. 1 specification is documented in the U.S. Government catalog.
Is NSN 3040-01-423-8050 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.