NSN 3040-01-494-9742 · NIIN 014949742 · Part number 581-6985418-71
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-494-9742 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-494-9742. Manufacturer of record part number: 581-6985418-71.
Also searched as3040-01-494-9742 ·
3040014949742 ·
NIIN 014949742 ·
01-494-9742 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 581-6985418-71 · 581-6985418 · H611-1402-71 · H611-1402
Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE
End Attachment Hole Diameter: 1.002 INCHES MAXIMUM FIRST END IN
End Attachment Width: 1.750 INCHES NOMINAL FIRST END IN
End Attachment Style: RAISED FACE, SQUARE FIRST END
End Attachment Length: 7.120 INCHES NOMINAL FIRST END IN
Material: COPPER ALLOY
Identification
NSN: 3040-01-494-9742
NIIN: 014949742
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 581-6985418-71
Manufacturer: Naval Sea Systems Command
General Description
The Connecting Link,rigid, cataloged under National Stock Number 3040-01-494-9742, 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 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-494-9742
Primary Part Number
581-6985418-71
Item Name
Connecting Link,rigid
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Body Construction
SOLID
Material Document and Classification
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE
End Attachment Hole Diameter
1.002 INCHES MAXIMUM FIRST END IN
End Attachment Width
1.750 INCHES NOMINAL FIRST END IN
End Attachment Style
RAISED FACE, SQUARE FIRST END
End Attachment Length
7.120 INCHES NOMINAL FIRST END IN
Material
COPPER ALLOY
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3010-01-495-3373581-6985418-72POSSIBLE MATCH
SLEEVE ASSEMBLY,SLIDING,CLUTCH
Possible match (shared part number)Naval Sea Systems Command
3010-01-495-3388581-6985418-A3POSSIBLE MATCH
CLUTCH,SLIDING SLEEVE,NONVEHICUL
Possible match (shared part number)Naval Sea Systems Command
2010-01-495-3402581-6985418-A1POSSIBLE MATCH
TRANSMISSION,MECHANICAL,MARINE
Possible match (shared part number)Naval Sea Systems Command
3020-01-495-3450581-6985418-15POSSIBLE MATCH
GEAR ASSEMBLY,WORM
Possible match (shared part number)Naval Sea Systems Command
3120-01-495-4283581-6985418-13POSSIBLE MATCH
BEARING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
3120-01-495-4285581-6985418-1POSSIBLE MATCH
BEARING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
3120-01-495-4704581-6985418-75POSSIBLE MATCH
ROLLER,LINEAR-ROTARY MOTION
Possible match (shared part number)Naval Sea Systems Command
2520-01-495-6422EB211031557POSSIBLE MATCH
SLEEVE,SLIDING,MECHANICAL TRANSM
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
NSN 3040-01-494-9742 is a Connecting Link,rigid, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-494-9742?
NSN 3040-01-494-9742 has 1 manufacturer part number on file: 581-6985418-71 (Naval Sea Systems Command).
What NSN replaces 3040-01-494-9742?
8 possible matches (shared part number, not a government interchangeability claim): 3010-01-495-3373, 3010-01-495-3388, 2010-01-495-3402. Verify interchangeability with system specifications before substitution.
What are the specifications of 581-6985418-71?
Key specifications for 581-6985418-71: Body Construction: SOLID; Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE; End Attachment Hole Diameter: 1.002 INCHES MAXIMUM FIRST END IN; End Attachment Width: 1.750 INCHES NOMINAL FIRST END IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-494-9742 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.