The Bushing,sleeve, cataloged under National Stock Number 3120-01-477-5899, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Avalon Machine Products Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3120-01-477-5899 |
| Primary Part Number | ST4M166-16-009 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Avalon Machine Products Inc |
| 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 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| ST4M166-16-009 | The Boeing Company Div Defense (USA) |
| ST4M166-16-009 PRIMARY | Avalon Machine Products Inc (USA) |
| ST4M166-16-009 PRIMARY | All Power Manufacturing Co. (USA) |
| ST4M166-16-009 PRIMARY | Mayday Manufacturing Co. (USA) |
| ST4M166-16-009 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| ST4M166-16-009 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-477-5899 is a Bushing,sleeve, manufactured by Avalon Machine Products Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-477-5899 has 5 manufacturer part numbers on file: ST4M166-16-009 (The Boeing Company Div Defense), ST4M166-16-009 (Avalon Machine Products Inc), ST4M166-16-009 (All Power Manufacturing Co.), ST4M166-16-009 (Mayday Manufacturing Co.), ST4M166-16-009 (Reid Products Inc. Dba Reid Products Inc).
Key specifications for ST4M166-16-009: 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.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.