The Bushing,sleeve, cataloged under National Stock Number 3120-01-477-5667, 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 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-477-5667 |
| Primary Part Number | 4M374BC6-075 |
| 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 | MIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Flange Outside Diameter | 0.6150 INCHES MINIMUM AND 0.6350 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.5013 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | ASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.3625 INCHES MINIMUM AND 0.3640 INCHES MAXIMUM IN |
| Surface Treatment | COPPER ALLOY OVERALL |
| Flange Width | 0.0600 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 172 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 |
|---|---|
| 4M374BC6-075 PRIMARY | Avalon Machine Products Inc (USA) |
| 4M374BC6A075 | Tnl Sales Llc (USA) |
| 4M374BC6-075 PRIMARY | Mayday Manufacturing Co. (USA) |
| 4M374BC6-075 | The Boeing Company Div Defense (USA) |
NSN 3120-01-477-5667 is a Bushing,sleeve, manufactured by Avalon Machine Products Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-477-5667 has 4 manufacturer part numbers on file: 4M374BC6-075 (Avalon Machine Products Inc), 4M374BC6A075 (Tnl Sales Llc), 4M374BC6-075 (Mayday Manufacturing Co.), 4M374BC6-075 (The Boeing Company Div Defense).
Key specifications for 4M374BC6-075: Corner Shape: SQUARE ALL CORNERS; Surface Treatment Document and Classification: MIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Flange Outside Diameter: 0.6150 INCHES MINIMUM AND 0.6350 INCHES MAXIMUM IN; Body Outside Diameter: 0.5013 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN. 11 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.