NSN 3120-01-509-3263 · NIIN 015093263 · Part number ST4M166-3-1105
The Boeing Company Div Defense · FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings · CAGE 76301
Government record, cited
NSN 3120-01-509-3263 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-509-3263. Manufacturer of record part number: ST4M166-3-1105.
Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Body Outside Diameter: 0.3110 INCHES MINIMUM AND 0.3115 INCHES MAXIMUM IN
Criticality Code Justification: AGAV
Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 0.1900 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM IN
Identification
NSN: 3120-01-509-3263
NIIN: 015093263
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: ST4M166-3-1105
Manufacturer: The Boeing Company Div Defense
General Description
The Bushing,sleeve, cataloged under National Stock Number 3120-01-509-3263, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 9 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
3120-01-509-3263
Primary Part Number
ST4M166-3-1105
Item Name
Bushing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
The Boeing Company Div Defense
Status
ACTIVE
Corner Shape
SQUARE ALL CORNERS
Surface Treatment Document and Classification
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Body Outside Diameter
0.3110 INCHES MINIMUM AND 0.3115 INCHES MAXIMUM IN
Criticality Code Justification
AGAV
Style Designator
SOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and Classification
AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter
0.1900 INCHES MINIMUM AND 0.1910 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 3120-01-509-3263?
NSN 3120-01-509-3263 is a Bushing,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-509-3263?
NSN 3120-01-509-3263 has 1 manufacturer part number on file: ST4M166-3-1105 (The Boeing Company Div Defense).
What are the specifications of ST4M166-3-1105?
Key specifications for ST4M166-3-1105: Corner Shape: SQUARE ALL CORNERS; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Outside Diameter: 0.3110 INCHES MINIMUM AND 0.3115 INCHES MAXIMUM IN; Criticality Code Justification: AGAV. 9 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-509-3263 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.