The Bearing Half,sleeve, cataloged under National Stock Number 3120-00-376-8543, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-376-8543 |
| Primary Part Number | 21-464 |
| Item Name | Bearing Half,sleeve |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Surface Groove Location and Quantity | 1 INTERNAL |
| Material | COPPER ALLOY INTERMEDIATE LAYER |
| Body Outside Diameter | 4.0020 INCHES MINIMUM AND 4.0030 INCHES MAXIMUM IN |
| Corner Shape | ROUND RIGHT FLANGE BODY CORNER |
| Corner Shape | SQUARE RIGHT FLANGE OUTSIDE LEFT CORNER |
| Corner Shape | ROUND INSIDE LEFT CORNER |
| Body Inside Diameter | 3.7480 INCHES MINIMUM AND 3.7490 INCHES MAXIMUM IN |
| Corner Shape | ROUND LEFT FLANGE BODY CORNER |
| Lubricant Accommodation Style | GROOVED CIRCULAR |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Right Flange Outside Diameter | 4.9844 INCHES MINIMUM AND 5.0469 INCHES MAXIMUM IN |
| Right Flange Width | 0.1310 INCHES MINIMUM AND 0.1330 INCHES MAXIMUM IN |
| Left Flange Outside Diameter | 4.9844 INCHES MINIMUM AND 5.0469 INCHES MAXIMUM IN |
| Material | COPPER ALLOY INNER LAYER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Style Designator | HALF SLEEVE, EXTERNAL FLANGES BOTH ENDS |
| Material | STEEL COMP 1010 OUTER LAYER |
| Hole Diameter | 0.2500 INCHES NOMINAL FIRST IN |
| Left Flange Width | 0.1310 INCHES MINIMUM AND 0.1330 INCHES MAXIMUM IN |
| Antirotation/lubrication Type and Quantity | 1 HOLE |
| Corner Shape | ROUND INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3120-00-376-8543 is a Bearing Half,sleeve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-00-376-8543 has 3 cross-referenced part numbers: 21-464 (Dresser Industries Inc Leroi Div), 21-464 (Dresser, Llc), E554-21-1 (Dresser Industries Inc Leroi Div).
There are 5 known substitutes for 3120-00-376-8543: 5330-00-485-4293, 5920-00-757-9140, 6145-00-866-2323 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21-464: Surface Groove Location and Quantity: 1 INTERNAL; Material: COPPER ALLOY INTERMEDIATE LAYER; Body Outside Diameter: 4.0020 INCHES MINIMUM AND 4.0030 INCHES MAXIMUM IN; Corner Shape: ROUND RIGHT FLANGE BODY CORNER. 23 total characteristics are documented in the Federal Logistics Information System.