# NSN 1615-00-121-6450: Lock, Nut, Main Rotor

NSN 1615-00-121-6450 (also written 1615001216450; NIIN 00-121-6450) is a lock, nut, main rotor in Federal Supply Class 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 1615-00-121-6450 (1615001216450)
- NIIN: 00-121-6450 (001216450)
- Item name: LOCK,NUT,MAIN ROTOR
- Federal Supply Class: [FSC 1615 Helicopter Rotor Blades, Drive Mechanisms and Components](https://nsnexplorer.com/fsc/1615/)
- Federal Supply Group: [FSG 16](https://nsnexplorer.com/group/16/)
- Acquisition method suffix code: AMSC P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM ALLOY QQ-A-250/4 COMP 2024-T4 OR 2024-T3,ANODIZED FW4001 BELL HELICOPTER CO,DIM.,1.100 IN. NOM LG,0.732 IN. MIN,0.737 IN. MAX W,0.190IN. NOM THICK,LOWER LEFT AND RIGHT CORNERS CUT AT 45 DEG ANGLE BY 0.425 IN. LG,TOP CENTER RECESSED 0.192 IN. MIN,0.197 IN. MAX DEEP BY 0.900 IN. MIN,0.920 IN. MAX WIDE W/INSIDE CORNERS ROUNDED BY 0.125 IN. RADIUS,ONE HOLE 0.265 IN. MIN,0.270 IN. MAX DIA DRILLED THRU 0.250 IN. FROM BOTTOMAND 0.550 IN. FROM RIGHT SIDE,ONE HOLE0.046 IN. MIN,0.052 IN. MAX DIA DRILLED AT 45 DEG ANGLE TO LEFT SIDE CUT 0.120 IN. FROM LEFT EDGE AND 0.200IN. FROM TOP OF CUT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 206-010-195-1 | 97499 | BELL TEXTRON INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-07 | $85.00 | 30 | 2S601 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1615001216450) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-07 | [SPE4A627P1501](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1615001216450) | LOCK, NUT, MAIN ROTOR | — | $2,550.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1615001216450&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1615001216450
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/1615-00-121-6450/
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