NSN 3120-00-686-5976 · NIIN 006865976 · Part number 4B19C6-008
The Boeing Company Div Legacy Am&m · FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings · CAGE 43999
Government record, cited
NSN 3120-00-686-5976 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-686-5976. Manufacturer of record part number: 4B19C6-008.
Body Outside Diameter: 0.5010 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM IN
Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 0.3745 INCHES MINIMUM AND 0.3755 INCHES MAXIMUM IN
Material: STEEL COMP 630 OVERALL
Identification
NSN: 3120-00-686-5976
NIIN: 006865976
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: 4B19C6-008
Manufacturer: The Boeing Company Div Legacy Am&m
General Description
The Bushing,sleeve, cataloged under National Stock Number 3120-00-686-5976, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 7 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-00-686-5976
Primary Part Number
4B19C6-008
Item Name
Bushing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
The Boeing Company Div Legacy Am&m
Status
ACTIVE
Surface Finish
125.0 MICROINCHES INTERMEDIATE LAYER
Corner Shape
SQUARE ALL CORNERS
Body Outside Diameter
0.5010 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM IN
Style Designator
SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification
AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter
0.3745 INCHES MINIMUM AND 0.3755 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 3120-00-686-5976?
NSN 3120-00-686-5976 is a Bushing,sleeve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-00-686-5976?
NSN 3120-00-686-5976 has 1 manufacturer part number on file: 4B19C6-008 (The Boeing Company Div Legacy Am&m).
What are the specifications of 4B19C6-008?
Key specifications for 4B19C6-008: Surface Finish: 125.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.5010 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3120-00-686-5976 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.