The Collar,shaft, cataloged under National Stock Number 3040-01-278-5515, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-278-5515 |
| Primary Part Number | 704-5940676 ITEM 3 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Largest Diameter Length | 3.630 INCHES NOMINAL IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Securing Hole Quantity | 2 |
| Bore Diameter | 3.0020 INCHES NOMINAL IN |
| Outside Diameter | 4.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Countersunk Hole Angle in Deg and Location | 90.0 ALL HOLES |
| Nominal Thread Size | 0.375 INCHES ALL HOLES IN |
| Style Designator | ROUND W/SINGLE CHAMFER |
| Countersink Major Diameter and Location | 0.4100 INCHES NOMINAL ALL HOLES IN |
| Securing Hole Type and Location | THREADED-COUNTERSUNK ALL HOLES |
| Chamfer Angle in Deg | 45.0 |
| Thickness | 3.880 INCHES NOMINAL IN |
| Screw Thread Series Designator and Location | ALL HOLES UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1507-104 ITEM 3 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 704-5940676 ITEM 3 PRIMARY | Naval Sea Systems Command (USA) |
| 1507-104 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 704-5940676 | Naval Sea Systems Command (USA) |
NSN 3040-01-278-5515 is a Collar,shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-01-278-5515 has 4 cross-referenced part numbers: 1507-104 ITEM 3 (Huntington Ingalls Inc Div Newport News Shipbuilding), 704-5940676 ITEM 3 (Naval Sea Systems Command), 1507-104 (Huntington Ingalls Inc Div Newport News Shipbuilding), 704-5940676 (Naval Sea Systems Command).
There are 7 known substitutes for 3040-01-278-5515: 5310-00-006-2250, 3040-01-278-3700, 3040-01-278-3701 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 704-5940676 ITEM 3: Largest Diameter Length: 3.630 INCHES NOMINAL IN; Angle Between Centerlines of Securing Holes in Deg: 90.0; Securing Hole Quantity: 2; Bore Diameter: 3.0020 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.