The Shaft,straight, cataloged under National Stock Number 3040-00-458-8109, 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 10 commercial cross-references from 10 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 | 3040-00-458-8109 |
| Primary Part Number | A6-18 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| End Similarity | IDENTICAL |
| First End Diameter | 0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN |
| Surface Finish | 8.0 MICROINCHES |
| Material | STEEL COMP 303 |
| First End Style | PLAIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S4-18U | W. M. Berg, Inc. (USA) |
| A6-18 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| SS242 PRIMARY | Secs Inc (USA) |
| 12373418 | General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc (USA) |
| US3-15 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| 12373418 | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA) |
| 12373418 | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| 12373418 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| AAS-A8-8 | Nordex Inc (USA) |
| AAS-A8-8 | Nordex, Incorporated Dba Nordex Inc (USA) |
NSN 3040-00-458-8109 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 3040-00-458-8109 has 10 cross-referenced part numbers: S4-18U (W. M. Berg, Inc.), A6-18 (Roller Bearing Co of America, Inc Div Pic Design), SS242 (Secs Inc), 12373418 (General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc), US3-15 (Designatronics Incorporated Div Sterling Instruments Div) and 5 more.
There are 4 known substitutes for 3040-00-458-8109: 5305-00-274-0588, 5310-00-285-5677, 5996-00-556-7708 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for A6-18: End Similarity: IDENTICAL; First End Diameter: 0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN; Surface Finish: 8.0 MICROINCHES; Material: STEEL COMP 303. 6 total characteristics are documented in the Federal Logistics Information System.