PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA1212-4Bearing,sleeve

Chrysler Corp Amplex Div · NSN 3120-00-661-3544 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-3544 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-3544. Primary manufacturer part number: AA1212-4.
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: OIL LUBRICATING LUBRICATION
  • Nondefinitive Spec/std Data: 1 TYPE AND B COMPOSITION
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: MIL-B-5687,TY 1,COMP B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 1.0000 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-3544, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Chrysler Corp Amplex Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 8 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
NSN3120-00-661-3544
Primary Part NumberAA1212-4
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerChrysler Corp Amplex Div
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialOIL LUBRICATING LUBRICATION
Nondefinitive Spec/std Data1 TYPE AND B COMPOSITION
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationMIL-B-5687,TY 1,COMP B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter1.0000 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN
Body Outside Diameter1.2510 INCHES MINIMUM AND 1.2520 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-522-6513 INTERCHANGEABLE
Bearing,sleeve
3120-00-534-5776 INTERCHANGEABLE
Bearing,sleeve
3120-00-534-5777 INTERCHANGEABLE
Bearing,sleeve
3120-00-534-5810 INTERCHANGEABLE
Bearing,sleeve
3120-00-625-8226 INTERCHANGEABLE
Bearing,sleeve
3120-00-661-3513 INTERCHANGEABLE
Bearing,sleeve
3120-00-661-5849B260-0245 INTERCHANGEABLE
Bearing,sleeve
Atlas Brass Foundry Inc
3120-00-661-7687F838-1 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
3120-00-661-9036 INTERCHANGEABLE
Bearing,sleeve
3120-00-662-2538 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
564-7503-935944PCT3 Naval Ship Systems Command (USA)
2983-23ALT1PCT3 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
490231ALT3PCN4 Naval Ship Systems Command (USA)
2983-05ALT4PCQ3 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
465-285ALT3PCN4 Portsmouth Naval Shipyard (USA)
A1212-4 Chrysler Corp Amplex Div (USA)
2983-21PCQ3 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
12615260-3 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
12616694-3 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
A1212-4 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
564-7503-935926PCQ3 Naval Ship Systems Command (USA)
AA1212-4 Beemer Precision Inc (USA)
564-7503-935942PCQ3 Naval Ship Systems Command (USA)
MILB5687TYPE1C0MP0SITI0NB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AA1212-4 PRIMARY Chrysler Corp Amplex Div (USA)
Related Parts
3120-00-522-6513INTERCHANGEABLE
BEARING,SLEEVE
3120-00-534-5776INTERCHANGEABLE
BEARING,SLEEVE
3120-00-534-5777INTERCHANGEABLE
BEARING,SLEEVE
3120-00-534-5810INTERCHANGEABLE
BEARING,SLEEVE
3120-00-625-8226INTERCHANGEABLE
BEARING,SLEEVE
3120-00-661-3513INTERCHANGEABLE
BEARING,SLEEVE
3120-00-661-5849INTERCHANGEABLE
BEARING,SLEEVE
B260-0245
3120-00-661-7687INTERCHANGEABLE
BEARING,SLEEVE
F838-1
3120-00-661-9036INTERCHANGEABLE
BEARING,SLEEVE
3120-00-662-2538INTERCHANGEABLE
BEARING,SLEEVE
3120-00-728-6055INTERCHANGEABLE
BEARING,SLEEVE
3120-00-752-6484INTERCHANGEABLE
BEARING,SLEEVE
A2304-6

Frequently Asked Questions

What is NSN 3120-00-661-3544?

NSN 3120-00-661-3544 is a Bearing,sleeve, manufactured by Chrysler Corp Amplex Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-3544?

NSN 3120-00-661-3544 has 15 cross-referenced part numbers: 564-7503-935944PCT3 (Naval Ship Systems Command), 2983-23ALT1PCT3 (Electric Boat Corporation Div General Dynamics Electric Boat), 490231ALT3PCN4 (Naval Ship Systems Command), 2983-05ALT4PCQ3 (Electric Boat Corporation Div General Dynamics Electric Boat), 465-285ALT3PCN4 (Portsmouth Naval Shipyard) and 10 more.

What NSN replaces 3120-00-661-3544?

There are 12 known substitutes for 3120-00-661-3544: 3120-00-522-6513, 3120-00-534-5776, 3120-00-534-5777 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA1212-4?

Key specifications for AA1212-4: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material: OIL LUBRICATING LUBRICATION; Nondefinitive Spec/std Data: 1 TYPE AND B COMPOSITION; Corner Shape: SQUARE ALL CORNERS. 9 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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