PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12BS12Bearing,ball,annular

Anti-Friction Bearing Mfg Assn Inc the · NSN 3110-00-156-5018 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-5018 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-5018. Primary manufacturer part number: 12BS12.
Features
  • Bearing,ball,annular — FSC 3110
  • Self-Alignment Location: INTERNAL
  • Material: STEEL INNER RING
  • Material: STEEL BALL
  • Material: STEEL OUTER RING
  • Style Designator: NON-SEPARABLE
  • Bore Shape: STRAIGHT
  • Load Direction: ANGULAR
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Inner Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-156-5018, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Anti-Friction Bearing Mfg Assn Inc the. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-156-5018
Primary Part Number12BS12
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerAnti-Friction Bearing Mfg Assn Inc the
StatusACTIVE
Self-Alignment LocationINTERNAL
MaterialSTEEL INNER RING
MaterialSTEEL BALL
MaterialSTEEL OUTER RING
Style DesignatorNON-SEPARABLE
Bore ShapeSTRAIGHT
Load DirectionANGULAR
Internal Fit-Up Contact Angular DirectionINWARD CONVERGENT
Standard Tolerance DesignationABEC NO.1
Bore Diameter12.00 MILLIMETERS NOMINAL MM
Surface FinishGROUND
Alignment TypeSELF-ALIGNING
Internal Fit-Up DesignationSTANDARD
Overall Outside Diameter32.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-011-6123MS35338-69 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3020-00-252-734750-4 INTERCHANGEABLE
Chain,roller
Union Chain Div of Ust Inc
2530-00-272-7518MCFE050 INTERCHANGEABLE
Weight,wheel Balancing
Napa Automotive Parts Co
4920-00-324-1762 INTERCHANGEABLE
Element,heater
5950-00-681-7453 INTERCHANGEABLE
Transformer,audio Frequency
4720-00-682-7920100R4-12 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
5340-00-713-291735325 INTERCHANGEABLE
Clamp,loop
Walker Mfg Co
5999-00-757-1755 INTERCHANGEABLE
Heater,thermal Release
5950-00-797-37044290-0400 INTERCHANGEABLE
Coil,radio Frequency
Technipower Llc Dba Unipower
5961-00-946-1948U112 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
Cross-Reference Index
Part NumberManufacturer
50F500 American-Marsh Pumps Inc (USA)
F50 American-Marsh Pumps Inc (USA)
12BS12 PRIMARY Anti-Friction Bearing Mfg Assn Inc the (USA)
72-6970-011 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
1304-333 American-Marsh Pumps Inc (USA)
G7601-16 PRIMARY Brunson Instrument Company Dba Brunson Instrument Company (USA)
5135-96903 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
122359-12 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
12Z315-61 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SKF1201 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
700672 Army Weapons Command Attn Amswe-Ree-S (USA)
U112 PRIMARY Fag Bearings Corporation (USA)
177009-61 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SKF1201 PRIMARY Fairbanks Morse, Llc (USA)
67566-15 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
1201 PRIMARY Kearfott Corporation Div Guidance and Navigation Division (USA)
72-6970-011 PRIMARY Fairbanks Morse, Llc (USA)
1201 PRIMARY Skf Usa Inc. (USA)
1201 Equitable Bearing Co Inc (USA)
Related Parts
5310-00-011-6123INTERCHANGEABLE
WASHER,LOCK
MS35338-69
3020-00-252-7347INTERCHANGEABLE
CHAIN,ROLLER
50-4
2530-00-272-7518INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
MCFE050
4920-00-324-1762INTERCHANGEABLE
ELEMENT,HEATER
5950-00-681-7453INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4720-00-682-7920INTERCHANGEABLE
HOSE,NONMETALLIC
100R4-12
5340-00-713-2917INTERCHANGEABLE
CLAMP,LOOP
35325
5999-00-757-1755INTERCHANGEABLE
HEATER,THERMAL RELEASE
5950-00-797-3704INTERCHANGEABLE
COIL,RADIO FREQUENCY
4290-0400
5961-00-946-1948INTERCHANGEABLE
TRANSISTOR
U112
5975-00-964-3036INTERCHANGEABLE
ENTRANCE CAP,ELECTRICAL
F50
6130-01-011-0559INTERCHANGEABLE
POWER SUPPLY
SF-50A

Frequently Asked Questions

What is NSN 3110-00-156-5018?

NSN 3110-00-156-5018 is a Bearing,ball,annular, manufactured by Anti-Friction Bearing Mfg Assn Inc the, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-156-5018?

NSN 3110-00-156-5018 has 19 cross-referenced part numbers: 50F500 (American-Marsh Pumps Inc), F50 (American-Marsh Pumps Inc), 12BS12 (Anti-Friction Bearing Mfg Assn Inc the), 72-6970-011 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), 1304-333 (American-Marsh Pumps Inc) and 14 more.

What NSN replaces 3110-00-156-5018?

There are 12 known substitutes for 3110-00-156-5018: 5310-00-011-6123, 3020-00-252-7347, 2530-00-272-7518 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12BS12?

Key specifications for 12BS12: Self-Alignment Location: INTERNAL; Material: STEEL INNER RING; Material: STEEL BALL; Material: STEEL OUTER RING. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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