NSN 3120-01-249-4306 · NIIN 012494306 · Part number 4M139C8-28
All Power Manufacturing Co. · FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings · CAGE 70265
Government record, cited
NSN 3120-01-249-4306 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-249-4306. Manufacturer of record part number: 4M139C8-28.
Flange Outside Diameter: 0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
Body Outside Diameter: 0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN
Body Inside Diameter: 0.4935 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
Flange Width: 0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
Material: STEEL COMP 630 OVERALL
1 manufacturer part number on file
Manufacturer of record: All Power Manufacturing Co.
Identification
NSN: 3120-01-249-4306
NIIN: 012494306
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: 4M139C8-28
Manufacturer: All Power Manufacturing Co.
General Description
The Bushing,sleeve, cataloged under National Stock Number 3120-01-249-4306, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is All Power Manufacturing Co.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-01-249-4306
Primary Part Number
4M139C8-28
Item Name
Bushing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
All Power Manufacturing Co.
Status
ACTIVE
Flange Outside Diameter
0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
Body Outside Diameter
0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN
Body Inside Diameter
0.4935 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
Flange Width
0.0600 INCHES MINIMUM AND 0.0620 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 3120-01-249-4306?
NSN 3120-01-249-4306 is a Bushing,sleeve, manufactured by All Power Manufacturing Co., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-249-4306?
NSN 3120-01-249-4306 has 1 manufacturer part number on file: 4M139C8-28 (All Power Manufacturing Co.).
What are the specifications of 4M139C8-28?
Key specifications for 4M139C8-28: Flange Outside Diameter: 0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN; Body Outside Diameter: 0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN; Overall Length: 0.3420 INCHES NOMINAL IN; Body Inside Diameter: 0.4935 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-249-4306 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.