The Bushing,sleeve, cataloged under National Stock Number 3120-01-686-7155, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Ctcoa, Llc Dba Olympic Aviation. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-686-7155 |
| Primary Part Number | NAS77-18-054 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Ctcoa, Llc Dba Olympic Aviation |
| Status | ACTIVE |
| Flange Outside Diameter | 1.50 INCHES NOMINAL IN |
| Body Outside Diameter | 1.3148 INCHES NOMINAL IN |
| Body Inside Diameter | 1.1250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | COPPER AND STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NAS77-18-054 | Aero Defence Pty Ltd (AUS) |
| NAS77-18-054 PRIMARY | Ctcoa, Llc Dba Olympic Aviation (USA) |
| NAS77-18-054 | Fastenair Corp (USA) |
| Reference | Meaning |
|---|---|
| NAS77-18-054 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-686-7155 is a Bushing,sleeve, manufactured by Ctcoa, Llc Dba Olympic Aviation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-686-7155 has 3 manufacturer part numbers on file: NAS77-18-054 (Aero Defence Pty Ltd), NAS77-18-054 (Ctcoa, Llc Dba Olympic Aviation), NAS77-18-054 (Fastenair Corp).
Key specifications for NAS77-18-054: Flange Outside Diameter: 1.50 INCHES NOMINAL IN; Body Outside Diameter: 1.3148 INCHES NOMINAL IN; Body Inside Diameter: 1.1250 INCHES NOMINAL IN; Special Features: HEAT TREATED PER AMS-QQ-P-416, TYPE II. 5 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.