The Bearing,sleeve, cataloged under National Stock Number 3120-01-135-4203, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Secs Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-135-4203 |
| Primary Part Number | OB24 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Secs Inc |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Material Document and Classification | MIL-B-5687, TY 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY 841 OVERALL |
| Material | OIL LUBRICATING LUBRICATION |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Outside Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| OB24 PRIMARY | Secs Inc (USA) |
| AM-2 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| B3-14 | W. M. Berg, Inc. (USA) |
| DAM2 | Allied Devices Corp Dba Absolute Precision Co (USA) |
| S99BP3-BB123210 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| GN-2 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
NSN 3120-01-135-4203 is a Bearing,sleeve, manufactured by Secs Inc, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-01-135-4203 has 6 cross-referenced part numbers: OB24 (Secs Inc), AM-2 (Roller Bearing Co of America, Inc Div Pic Design), B3-14 (W. M. Berg, Inc.), DAM2 (Allied Devices Corp Dba Absolute Precision Co), S99BP3-BB123210 (Designatronics Incorporated Div Sterling Instruments Div) and 1 more.
There are 12 known substitutes for 3120-01-135-4203: 6625-00-004-9274, 6625-00-089-5547, 4530-00-394-8477 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for OB24: Corner Shape: SQUARE ALL CORNERS; Material Document and Classification: MIL-B-5687, TY 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY 841 OVERALL; Material: OIL LUBRICATING LUBRICATION. 8 total characteristics are documented in the Federal Logistics Information System.