NSN 3040-01-475-6622 · NIIN 014756622 · Part number 845-6655309 ITEM 5-2
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-475-6622 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-475-6622. Manufacturer of record part number: 845-6655309 ITEM 5-2.
Material Document and Classification: QQ-B-637 ALLOY 464 1/2H FED SPEC SINGLE MATERIAL RESPONSE
End Attachment Hole Diameter: 0.378 INCHES MINIMUM BOTH ENDS IN
End Attachment Width: 0.357 INCHES NOMINAL BOTH ENDS IN
End Attachment Length: 1.444 INCHES NOMINAL BOTH ENDS IN
Material: COPPER ALLOY
Identification
NSN: 3040-01-475-6622
NIIN: 014756622
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 845-6655309 ITEM 5-2
Manufacturer: Naval Sea Systems Command
General Description
The Connecting Link,rigid, cataloged under National Stock Number 3040-01-475-6622, 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 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-475-6622
Primary Part Number
845-6655309 ITEM 5-2
Item Name
Connecting Link,rigid
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Body Construction
SOLID
Link Style
STRAIGHT
Material Document and Classification
QQ-B-637 ALLOY 464 1/2H FED SPEC SINGLE MATERIAL RESPONSE
End Attachment Hole Diameter
0.378 INCHES MINIMUM BOTH ENDS IN
End Attachment Width
0.357 INCHES NOMINAL BOTH ENDS IN
End Attachment Length
1.444 INCHES NOMINAL BOTH ENDS IN
Material
COPPER ALLOY
Body Thickness
0.357 INCHES NOMINAL IN
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5355-01-477-40542640-682-09 ITEM 20-3POSSIBLE MATCH
KNOB
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5315-01-477-6788845-6655309 ITEM 2-2POSSIBLE MATCH
PIN,GROOVED,HEADED
Possible match (shared part number)Naval Sea Systems Command
5315-01-477-6791845-6655309 ITEM 3-2POSSIBLE MATCH
PIN,GROOVED,HEADED
Possible match (shared part number)Naval Sea Systems Command
4820-01-477-94472640-682-09 ITEM 9POSSIBLE MATCH
BALLADAPTER
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5305-01-480-20322640-682-09 ITEM 16-2POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5305-01-480-20796655309 ITEM 3-3POSSIBLE MATCH
SCREW,EXTERNALLY RELIEVED BODY
Possible match (shared part number)Naval Sea Systems Command
NSN 3040-01-475-6622 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 3040-01-475-6622?
NSN 3040-01-475-6622 has 1 manufacturer part number on file: 845-6655309 ITEM 5-2 (Naval Sea Systems Command).
What NSN replaces 3040-01-475-6622?
6 possible matches (shared part number, not a government interchangeability claim): 5355-01-477-4054, 5315-01-477-6788, 5315-01-477-6791. Verify interchangeability with system specifications before substitution.
What are the specifications of 845-6655309 ITEM 5-2?
Key specifications for 845-6655309 ITEM 5-2: Body Construction: SOLID; Link Style: STRAIGHT; Material Document and Classification: QQ-B-637 ALLOY 464 1/2H FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 2.887 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-475-6622 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.