The Clamp,hub, cataloged under National Stock Number 3040-00-918-4532, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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 | 3040-00-918-4532 |
| Primary Part Number | L1-21 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Thickness | 0.312 INCHES NOMINAL IN |
| Plain Hole Diameter | 0.1470 INCHES NOMINAL IN |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Material | STEEL |
| Style Designator | ROUND, SINGLE BOLT SECURED |
| Surface Treatment | PASSIVATE |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Size | 0.138 INCHES IN |
| Bore Diameter | 0.4370 INCHES NOMINAL IN |
| Clamp Securing Hole Style | THREADED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10180356-1 | Us Army Aviation and Missile Command (USA) |
| 69422-2 | L3harris Technologies, Inc. Div Space and Airborne Systems (USA) |
| LL-21 | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| L1-21 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
NSN 3040-00-918-4532 is a Clamp,hub, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-918-4532 has 4 cross-referenced part numbers: 10180356-1 (Us Army Aviation and Missile Command), 69422-2 (L3harris Technologies, Inc. Div Space and Airborne Systems), LL-21 (Roller Bearing Co of America, Inc Div Pic Design), L1-21 (Roller Bearing Co of America, Inc Div Pic Design).
There are 4 known substitutes for 3040-00-918-4532: 3040-00-120-4913, 1650-00-463-7742, 5935-00-600-8835 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for L1-21: Thickness: 0.312 INCHES NOMINAL IN; Plain Hole Diameter: 0.1470 INCHES NOMINAL IN; Outside Diameter: 1.250 INCHES NOMINAL IN; Material: STEEL. 10 total characteristics are documented in the Federal Logistics Information System.