The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-031-1228, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Kahr Bearings. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-031-1228 |
| Primary Part Number | GB520CM750H |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Kahr Bearings |
| Status | ACTIVE |
| Outer Member Width | 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OUTER RACE MEMBER |
| Surface Treatment | CHROMIUM INNER MEMBER |
| Style Designator | WITHOUT INSERT OR LINER WITH STAKING GROOVE |
| Material | STEEL COMP 440C INNER MEMBER |
| Inner Member Width | 1.4540 INCHES MINIMUM AND 1.4590 INCHES MAXIMUM IN |
| Outer Member Outside Diameter | 1.5620 INCHES MINIMUM AND 1.5625 INCHES MAXIMUM IN |
| Static Radial Load Rating | 40000 POUNDS LBS |
| Bore Diameter | 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GB520CM750H PRIMARY | Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA) |
| ASBY12V65 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| 55753 PRIMARY | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| GB520CM750H | Northrop Grumman Systems Corporation (USA) |
| GB520CM750H PRIMARY | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
NSN 3120-00-031-1228 is a Bearing,plain,self-Aligning, manufactured by Sargent Aerospace & Defense, Llc Dba Kahr Bearings, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-00-031-1228 has 5 cross-referenced part numbers: GB520CM750H (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), ASBY12V65 (New Hampshire Ball Bearings Inc Div Astro Division), 55753 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), GB520CM750H (Northrop Grumman Systems Corporation), GB520CM750H (New Hampshire Ball Bearings Inc Div Precision Division).
There are 4 known substitutes for 3120-00-031-1228: 5360-00-077-0953, 5120-00-223-1951, 1730-01-134-3119 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for GB520CM750H: Outer Member Width: 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN; Material: STEEL COMP 630 OUTER RACE MEMBER; Surface Treatment: CHROMIUM INNER MEMBER; Style Designator: WITHOUT INSERT OR LINER WITH STAKING GROOVE. 10 total characteristics are documented in the Federal Logistics Information System.