MS APPROVED PARTS
MS Part Number 
RBC Part Number 1
RBC Part Number 2
Status Description 
M81820/1 NEEG-   A Spherical Bearing, Narrow Series, Grooved, Mil-B-81820 Liner
M81820/2 WEE-   A Spherical Bearing, Wide Series, Mil-B-81820 Liner
M81820/3 WEEG-   A Spherical Bearing, Wide Series, Grooved, Mil-B-81820 Liner
M81820/4 NEE-   A Spherical Bearing, Narrow Series, Mil-B-81820 Liner
M81934/1- A PBE- -A- 06-382 A Journal, Mil-B-81943 Liner, Fabroid, 2024-T851 Backing
M81934/1- C PBE- -C- 06-282 A Journal, Mil-B-81943 Liner, Fabroid, 17-4 PH Backing
M81934/2- A FBE- -A- 07-382 A Flanged Journal, Mil-B-81943 Liner, Fabroid, 2024-T851 Backing
M81934/2- C FBE- -C- 07-282 A Flanged Journal, Mil-B-81943 Liner, Fabroid, 17-4 Backing
M81935/1 ME- 01-824 A Rod End, Male, Mil-B-81820 Liner, 4340 Cd plated body, 17-4 race, 440C ball
M81935/2 FE- 02-824 A Rod End, Female, Mil-B-81820 Liner, 4340 Cd plated body, 17-4 race, 440C ball
M81935/4 ME- AN   A Rod End, Male, Narrow Series, Mil-B-81820 Liner
M81935/5 FE- AN   A Rod End, Female, Narrow Series, Mil-B-81820 Liner
Mil-B-81936/1 03-582   A Spherical Bearing, 17-4 PH Race, Beryllium Cu Ball, Grooved, Relubricatible
Mil-B-81936/1 R 03-592   A Spherical Bearing, 17-4 PH Race, Beryllium Cu Ball, Grooved
Mil-B-81936/2 03-580   A Spherical Bearing, 17-4 PH Race, Beryllium Cu Ball, Relubricatible
Mil-B-81936/2 R 03-590   A Spherical Bearing, 17-4 PH Race, Beryllium Cu Ball
MS14101 NEG- 03-825 A Spherical Bearing, Narrow Series, Grooved, Mil-B-81820 Liner
MS14102 WE- 03-824 A Spherical Bearing, Wide Series, Mil-B-81820 Liner
MS14103 WEG- 03-826 A Spherical Bearing, Wide Series, Grooved, Mil-B-81820 Liner
MS14104 NE- 03-823 A Spherical Bearing, Narrow Series, Mil-B-81820 Liner
MS21150 REP S   A Rod End, Solid Shank, Ball Bearing
MS21151 REP M   A Rod End, External Thread, Ball Bearing
MS21152 REP H   A Rod End, Hollow Shank, Ball Bearing
MS21153 REP F   A Rod End, Internal Thread, Ball Bearing
MS21154B   03-529- P Spherical Bearing, AL Bronze Cad Plated, Grooved
MS21154S   03-569- P Spherical Bearing, 4340 Cad Plated, Grooved
MS21155B   03-520- P Spherical Bearing, AL Bronze Cad Plated
MS21155S   03-560- P Spherical Bearing, 4340 Cad Plated
MS21230 WEG- B 03-706 A Replaced by MS-14103
MS21231 WE- B 03-704 A Replaced by MS-14102
MS21232 NEG- B 03-705 A Replaced by MS-14101
MS21233 NE- B 03-703 A Replaced by MS-14104
MS21240   06-211- A Journal, Mil-B-8943 Liner, Fabroid, 17-4 PH Backing
MS21240   06-311- A Journal, Mil-B-8943 Liner, Fabroid, 7075-T6 Backing
MS21241   07-211- A Flanged Journal, Mil-B-8943 Liner, Fabroid, 17-4 PH Backing
MS21241   07-311- A Flanged Journal, Mil-B-8943 Liner, Fabroid, 7075-T6 Backing
MS21242S   01-740- A Rod End, Male, Fabroid Liner, 4340 Cd plated body, 17-4 race, 440C ball
MS21243S   02-740- A Rod End, Female, Fabroid Liner, 4340 Cd plated body, 17-4 race, 440C ball
MS21428 MB500DD   A Precision Series Single Row Ball Bearing
MS21432 HRS   A Track Roller, Stud Type
MS21438 ATF   A Track Roller, Single Row, Replaces NBF
MS21439 ATL   A Track Roller, Double Row, Replaces NBL
MS21443 P & PD   P Single & Double Row Ball Bearing, Pulley Series
MS21447 HRSC   A Track Roller, Stud Type, Crowned
MS24461 NBC   A Track Roller, Single Row, Thin Cross Section
MS24463 NBE   A Track Roller, Single Row, Self Aligning
MS24464 NBK   A Track Roller, Double Row, Self Aligning
MS24465 NBF   A Track Roller, Single Row, Replaced by ATF
MS24466 NBL   A Track Roller, Double Row, Replaced by ATL
MS27640 KP   A Single Row Ball Bearing, Heavy Duty
MS27640 R MKP   A Single Row Ball Bearing, Heavy Duty, Precision
MS27641 KP A   A Single Row Ball Bearing, Medium Duty
MS27641 R MKP A   A Single Row Ball Bearing, Medium Duty, Precision
MS27642 KP B   A Single Row Ball Bearing, Light Duty
MS27642-S MKP B   A Single Row Ball Bearing, Light Duty, Precision
MS27643 DSP   A Double Row Ball Bearing, Internal Self Aligning
MS27643 R MDSP   A Double Row Ball Bearing, Internal Self Aligning, Precision
MS27644 DP   A Double Row Ball Beairng, Radial Type & "-W" Wide
MS27645  KSP (A)   A Single Row Ball Bearing, Internal Self Aligning
MS27645 R MKSP (A)   A Single Row Ball Bearing, Internal Self Aligning, Precision
MS27646 B500DD   A Single Row Ball Bearing, Double sealed, Extra Light Duty
MS27647 & (-G) (G) DW (K)   A Double Row Ball Bearing, Extra Wide, & "G" relubricable
MS27647 R MDW (K)   A Double Row Ball Bearing, Extra Wide, Precision
MS27648 KP BS   A Single Row Ball Bearing, External Self Aligning, Extra Light Duty
MS27649 AW AK   A Single Row Ball Bearing, Stainless Steel
NAS659 RA M   A Rod End, External Thread, Ball Bearing
NAS659 RR M   A Rod End, External Thread, Roller Bearing
NAS660 RA F   A Rod End, Hollow Shank, Ball Bearing
NAS660 RR F   A Rod End, Hollow Shank, Roller Bearing
Note: Status column legend: "A" = Approved and "P" = Pending. Please check with customer service for more up to date information.