NSN 3120-01-010-9581 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-010-9581. Manufacturer of record part number: 300048.
The Bushing,worm Gear, cataloged under National Stock Number 3120-01-010-9581, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Michigan Dynamics Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Bushing,worm Gear
FSC / FSG
3120 — Bearings, Plain, Unmounted (FSG 31)
Manufacturers
Michigan Dynamics Inc (CAGE 05160)
Technical Specifications
Parameter
Value
NSN
3120-01-010-9581
Primary Part Number
300048
Item Name
Bushing,worm Gear
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Michigan Dynamics Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-013-0336POSSIBLE MATCH
TEE,TUBE TO BOSS
Possible match (shared part number)
6520-01-367-649630-0048POSSIBLE MATCH
REGULATOR,AIR FILTER,DENTAL UNIT
Possible match (shared part number)Dntlworks Equipment Corporation
5930-01-725-9014300048POSSIBLE MATCH
COVER,ELECTRICAL SWITCH
Possible match (shared part number)Boll Filter Corporation
NSN 3120-01-010-9581 is a Bushing,worm Gear, manufactured by Michigan Dynamics Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-010-9581?
NSN 3120-01-010-9581 has 1 manufacturer part number on file: 300048 (Michigan Dynamics Inc).
What NSN replaces 3120-01-010-9581?
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-013-0336, 6520-01-367-6496, 5930-01-725-9014. Verify interchangeability with system specifications before substitution.
Is NSN 3120-01-010-9581 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.