PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS17795-31Bearing,sleeve

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-01-310-5279 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-310-5279 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-310-5279. Primary manufacturer part number: MS17795-31.
Features
  • Bearing,sleeve — FSC 3120
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL
  • Material: COPPER ALLOY OR COPPER ALLOY 841 OVERALL
  • Surface Finish: 63.0 MICROINCHES OVERALL
  • Material Document and Classification: MIL-B-5687,TYPE 1,GRADE 2 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
  • Body Inside Diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.4395 INCHES MINIMUM AND 0.4405 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy or Copper Alloy 841 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-310-5279, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-310-5279
Primary Part NumberMS17795-31
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Hardness Rating30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL
MaterialCOPPER ALLOY OR COPPER ALLOY 841 OVERALL
Surface Finish63.0 MICROINCHES OVERALL
Material Document and ClassificationMIL-B-5687,TYPE 1,GRADE 2 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Body Inside Diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
Body Outside Diameter0.4395 INCHES MINIMUM AND 0.4405 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
MaterialOIL LUBRICATING LUBRICATION
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-00-662-8177S408-4 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
Cross-Reference Index
Part NumberManufacturer
MS17795-31 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2527235-31 Aerocontrolex Group, Inc. Div Talley Actuators (USA)
MS17795 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS17795-31 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASTM B439 American Society for Testing and Materials Dba Astm International (USA)
Related Parts
3120-00-662-8177INTERCHANGEABLE
BEARING,SLEEVE
S408-4

Frequently Asked Questions

What is NSN 3120-01-310-5279?

NSN 3120-01-310-5279 is a Bearing,sleeve, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-310-5279?

NSN 3120-01-310-5279 has 5 cross-referenced part numbers: MS17795-31 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 2527235-31 (Aerocontrolex Group, Inc. Div Talley Actuators), MS17795 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS17795-31 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ASTM B439 (American Society for Testing and Materials Dba Astm International).

What NSN replaces 3120-01-310-5279?

There is 1 known substitute for 3120-01-310-5279: 3120-00-662-8177. Verify interchangeability with system specifications before substitution.

What are the specifications of MS17795-31?

Key specifications for MS17795-31: Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 70.0 ROCKWELL C MAXIMUM OVERALL; Material: COPPER ALLOY OR COPPER ALLOY 841 OVERALL; Surface Finish: 63.0 MICROINCHES OVERALL; Material Document and Classification: MIL-B-5687,TYPE 1,GRADE 2 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL. 11 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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