PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P40-3Bearing,sleeve

Bunting Bearings Corp · NSN 3120-00-131-7089 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-131-7089 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-131-7089. Primary manufacturer part number: P40-3.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • Material: OIL LUBRICATING LUBRICATION
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL
  • Material Document and Classification: MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
  • Material Document and Classification: MIL-B-5687 TYPE 1 COMP A OR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
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 3120-00-131-7089, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Bunting Bearings Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-131-7089
Primary Part NumberP40-3
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBunting Bearings Corp
StatusACTIVE
Body Inside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
MaterialOIL LUBRICATING LUBRICATION
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Hardness Rating30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL
Material Document and ClassificationMIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Material Document and ClassificationMIL-B-5687 TYPE 1 COMP A OR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
Corner ShapeSQUARE ALL CORNERS
Body Outside Diameter0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5360-00-255-4410P403 INTERCHANGEABLE
Spring,helical,compression
Weldon Pump Llc
5310-00-333-75398330900 INTERCHANGEABLE
Nut,plain,extended Washer,hexago
U S Army Tank Automotive Command Amsta-Im-Mm
2940-00-541-3503C151A INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
6750-01-165-3517 INTERCHANGEABLE
Film,photographic
3120-01-258-3057863T2100030-061 INTERCHANGEABLE
Bushing,sleeve
Lockheed Martin Corp
4710-01-271-6179 INTERCHANGEABLE
Pipe,plastic
Cross-Reference Index
Part NumberManufacturer
P40-3 Bunting Bearings Corp (USA)
MS17795-54 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
CS502BB0375 Bound Brook Bearing Co (USA)
P40-3 Bunting Bearings Corp Kalamazoo Plant (USA)
MS17795 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5360-00-255-4410INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
P403
5310-00-333-7539INTERCHANGEABLE
NUT,PLAIN,EXTENDED WASHER,HEXAGO
8330900
2940-00-541-3503INTERCHANGEABLE
FILTER ELEMENT,FLUID
C151A
6750-01-165-3517INTERCHANGEABLE
FILM,PHOTOGRAPHIC
3120-01-258-3057INTERCHANGEABLE
BUSHING,SLEEVE
863T2100030-061
4710-01-271-6179INTERCHANGEABLE
PIPE,PLASTIC

Frequently Asked Questions

What is NSN 3120-00-131-7089?

NSN 3120-00-131-7089 is a Bearing,sleeve, manufactured by Bunting Bearings Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-131-7089?

NSN 3120-00-131-7089 has 5 cross-referenced part numbers: P40-3 (Bunting Bearings Corp), MS17795-54 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), CS502BB0375 (Bound Brook Bearing Co), P40-3 (Bunting Bearings Corp Kalamazoo Plant), MS17795 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-131-7089?

There are 6 known substitutes for 3120-00-131-7089: 5360-00-255-4410, 5310-00-333-7539, 2940-00-541-3503 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P40-3?

Key specifications for P40-3: Body Inside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN; Overall Length: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN; Material: COPPER ALLOY OVERALL; Material: OIL LUBRICATING LUBRICATION. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com