NSN 3120-00-005-7145 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-005-7145. Manufacturer of record part number: AA401-1.
Body Outside Diameter: 0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
Material: COPPER ALLOY OVERALL
2 manufacturer part numbers on file
Identification
NSN: 3120-00-005-7145
NIIN: 000057145
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: AA401-1
Manufacturer: Bunting Bearings Corp
General Description
The Bearing,sleeve, cataloged under National Stock Number 3120-00-005-7145, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Bunting Bearings Corp. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-00-005-7145
Primary Part Number
AA401-1
Item Name
Bearing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Bunting Bearings Corp
Status
ACTIVE
Corner Shape
SQUARE ALL CORNERS
Body Outside Diameter
0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
Style Designator
SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification
MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter
0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
Other items in FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288
3120-00-001-1288 · Item name not on file
3120-00-001-1835
3120-00-001-1835 · Item name not on file
3120-00-001-1838
3120-00-001-1838 · Item name not on file
3120-00-001-1928
3120-00-001-1928 · Item name not on file
3120-00-001-1934
3120-00-001-1934 · Item name not on file
3120-00-001-3933
3120-00-001-3933 · Item name not on file
3120-00-001-3937
3120-00-001-3937 · Item name not on file
3120-00-001-3938
3120-00-001-3938 · Item name not on file
Frequently Asked Questions
What is NSN 3120-00-005-7145?
NSN 3120-00-005-7145 is a Bearing,sleeve, manufactured by Bunting Bearings Corp, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-00-005-7145?
NSN 3120-00-005-7145 has 2 manufacturer part numbers on file: AA401-1 (Bunting Bearings Corp), AA401-1 (Beemer Precision Inc).
What are the specifications of AA401-1?
Key specifications for AA401-1: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3120-00-005-7145 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.