NSN 3120-01-424-7656 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-424-7656. Manufacturer of record part number: MMD-2225.
Body Outside Diameter: 3.0000 INCHES MINIMUM AND 3.0002 INCHES MAXIMUM IN
Style Designator: SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification: ASTMB505 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 2.5120 INCHES MINIMUM AND 2.5150 INCHES MAXIMUM IN
Flange Width: 0.2500 INCHES NOMINAL IN
Identification
NSN: 3120-01-424-7656
NIIN: 014247656
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: MMD-2225
Manufacturer: Appleton Marine Inc
General Description
The Bushing,sleeve, cataloged under National Stock Number 3120-01-424-7656, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Appleton Marine Inc. Government technical data includes 8 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-01-424-7656
Primary Part Number
MMD-2225
Item Name
Bushing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Appleton Marine Inc
Status
ACTIVE
Corner Shape
SQUARE ALL CORNERS
Flange Outside Diameter
3.5000 INCHES NOMINAL IN
Body Outside Diameter
3.0000 INCHES MINIMUM AND 3.0002 INCHES MAXIMUM IN
Style Designator
SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification
ASTMB505 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter
2.5120 INCHES MINIMUM AND 2.5150 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 3120-01-424-7656?
NSN 3120-01-424-7656 is a Bushing,sleeve, manufactured by Appleton Marine Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-424-7656?
NSN 3120-01-424-7656 has 2 manufacturer part numbers on file: MMD-2225 (Appleton Marine Inc), AMD-1088 IT-32 (Appleton Marine Inc).
What are the specifications of MMD-2225?
Key specifications for MMD-2225: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 3.5000 INCHES NOMINAL IN; Body Outside Diameter: 3.0000 INCHES MINIMUM AND 3.0002 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-424-7656 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.