The Shaft,straight, cataloged under National Stock Number 3040-00-936-2171, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 5 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-936-2171 |
| Primary Part Number | A3-28 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| First End Diameter | 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| End Similarity | IDENTICAL |
| Material | STEEL COMP 303 |
| Surface Finish | 10.0 MICROINCHES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A3-28 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| G4-23 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| A3286-8 | Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA) |
| A3286-8 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 70-268858-288 | General Dynamics Mission Systems, Inc. (USA) |
NSN 3040-00-936-2171 is a Shaft,straight, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-936-2171 has 5 cross-referenced part numbers: A3-28 (Roller Bearing Co of America, Inc Div Pic Design), G4-23 (Designatronics Incorporated Div Sterling Instruments Div), A3286-8 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems), A3286-8 (Lockheed Martin Corporation Div Rms), 70-268858-288 (General Dynamics Mission Systems, Inc.).
There are 5 known substitutes for 3040-00-936-2171: 5999-00-221-8601, 5915-00-471-3696, 1650-00-580-3330 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for A3-28: First End Diameter: 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN; First End Style: PLAIN; End Similarity: IDENTICAL; Overall Length: 2.860 INCHES MINIMUM AND 2.880 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.