# NSN 3110-00-042-0445: Bearing, Ball, Airframe

NSN 3110-00-042-0445 (also written 3110000420445; NIIN 00-042-0445) is a bearing, ball, airframe in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 13 manufacturer part numbers from 8 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 3110-00-042-0445 (3110000420445)
- NIIN: 00-042-0445 (000420445)
- Item name: BEARING,BALL,AIRFRAME
- Federal Supply Class: [FSC 3110 Bearings, Antifriction, Unmounted](https://nsnexplorer.com/fsc/3110/)
- Federal Supply Group: [FSG 31](https://nsnexplorer.com/group/31/)
- Acquisition method suffix code: AMSC T: handled under qualified products list procedures. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABXV | BORE DIAMETER | INCHES NOMINAL 1.4380 |
| ADGA | OVERALL OUTSIDE DIAMETER | INCHES NOMINAL 2.1875 |
| AGVT | OUTER RING WIDTH | INCHES NOMINAL 0.3750 |
| AGVU | INNER RING WIDTH | INCHES NOMINAL 0.4370 |
| AGYJ | SEAL QUANTITY | 2 |
| AGYW | BEARING SEAL TYPE | CONTACT |
| AGZC | LOAD DIRECTION | RADIAL |
| CTFZ | STANDARD TOLERANCE DESIGNATION | AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS |
| FEAT | SPECIAL FEATURES | 80 PCT. FULL OF MIL-G-81322,HEAT TREAT RINGS AND BALLS TO ROCKWELL C 60 TO 66 AND STABILIZED FOR OPERATION AT 250 DEG. F,RADIAL AND LATERAL ECCENTRICITY,INNER RING 0.0010 IN. OUTER RING 0.0016 IN.,0.0003-0.0010 IN. RADIAL CLEARANCE |
| LMDC | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL SPEC SINGLE MATERIAL RESPONSE -IL-G-81322 |
| MATT | MATERIAL | BALL STEEL COMP E52100 OR STEEL COMP E51100 |
| MATT | MATERIAL | INNER RING STEEL COMP E52100 |
| MATT | MATERIAL | OUTER RING STEEL COMP E52100 |
| MATT | MATERIAL | RETAINER STEEL CORROSION RESISTING |
| MATT | MATERIAL | SEAL PLASTIC POLYTETRAFLUOROETHYLENE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BALL FED STD ALL MATERIAL RESPONSES 66 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | INNER RING FED STD SINGLE MATERIAL RESPONSE 66 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OUTER RING FED STD SINGLE MATERIAL RESPONSE 66 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAL ASSN STD SINGLE MATERIAL RESPONSE A-S 3652 |
| SFTT | SURFACE TREATMENT | BALL CADMIUM |
| SFTT | SURFACE TREATMENT | INNER RING CADMIUM |
| SFTT | SURFACE TREATMENT | OUTER RING CADMIUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 1,CL 2 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | INNER RING FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 1,CL 2 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OUTER RING FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 1,CL 2 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1273852&1 | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AN202KP23B | 81352 | AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS27642 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS27642 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KP23B | 38443 | SKF USA INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KP23BFS10160 | 21335 | TIMKEN CO DIV THE TIMKEN COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KP23BFS428 | 21335 | TIMKEN CO DIV THE TIMKEN COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KP23BFS464 | 06144 | INDUSTRIAL TECTONICS BEARINGS CORPORATION DBA RBC BEARINGS INC DIV INDUSTRIAL TECTONICS BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KP23BFS464 | 21335 | TIMKEN CO DIV THE TIMKEN COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS20202KP23B | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS27642-23 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS27642-23 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS27642-23 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-21 | [SPE4A623DC040/SPE4A626F486R](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110000420445) | BEARING, BALL, AIRFRAME | RBC AIRCRAFT PRODUCTS, INC. | $2,183.93 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3110000420445&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110000420445
- 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.

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