PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA-507-23 MIL-L-7870Bearing,sleeve

Chrysler Corp Amplex Div · NSN 3120-00-078-7030 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-078-7030 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-078-7030. Primary manufacturer part number: AA-507-23 MIL-L-7870.
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY OVERALL
  • Body Outside Diameter: 0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
  • Material Document and Classification: MIL-B-8657,TYPE 1,COMP A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-8657,TYPE 1,COMP B MIL SPEC 2ND MATERIAL RESPONSE OVERALL
  • Body Inside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-078-7030, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-078-7030
Primary Part NumberAA-507-23 MIL-L-7870
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerChrysler Corp Amplex Div
StatusCANCELLED
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY OVERALL
Body Outside Diameter0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
Material Document and ClassificationMIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Material Document and ClassificationMIL-B-8657,TYPE 1,COMP A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-8657,TYPE 1,COMP B MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Body Inside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
MaterialOIL LUBRICATING LUBRICATION
Hardness Rating30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
2930-00-904-88838388 INTERCHANGEABLE
Pump Assembly
Elgin Industries Inc. Dba
Cross-Reference Index
Part NumberManufacturer
AA-507-23 MIL-L-7870 Chrysler Corp Amplex Div (USA)
3120000787030 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
P38-8 Bunting Bearings Corp Kalamazoo Plant (USA)
MS17795-51 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
00223-0389 Asrc Federal Facilities Logistics, Llc (USA)
00223-0389 Harsco Corp Bmy-Combat Systems Div (USA)
EP060816 Bunting Bearings Llc Dba Bunting Bearings Corp (USA)
P38-8 Bunting Bearings Corp (USA)
EP060816 Bunting Bearings Corp Kalamazoo Plant (USA)
Related Parts
2930-00-904-8883INTERCHANGEABLE
PUMP ASSEMBLY
8388

Frequently Asked Questions

What is NSN 3120-00-078-7030?

NSN 3120-00-078-7030 is a Bearing,sleeve, manufactured by Chrysler Corp Amplex Div, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-078-7030?

NSN 3120-00-078-7030 has 9 cross-referenced part numbers: AA-507-23 MIL-L-7870 (Chrysler Corp Amplex Div), 3120000787030 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), P38-8 (Bunting Bearings Corp Kalamazoo Plant), MS17795-51 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 00223-0389 (Asrc Federal Facilities Logistics, Llc) and 4 more.

What NSN replaces 3120-00-078-7030?

There is 1 known substitute for 3120-00-078-7030: 2930-00-904-8883. Verify interchangeability with system specifications before substitution.

What are the specifications of AA-507-23 MIL-L-7870?

Key specifications for AA-507-23 MIL-L-7870: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Material: COPPER ALLOY OVERALL; Body Outside Diameter: 0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-078-7030 still in active supply?

NSN 3120-00-078-7030 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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