The Spacer,sleeve, cataloged under National Stock Number 5365-01-253-0477, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-253-0477 |
| Primary Part Number | 4M231S4-03 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Flange Outside Diameter | 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.2680 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM IN |
| Flange Width | 0.0130 INCHES MINIMUM AND 0.0330 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 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 |
|---|---|
| 4M231S4-03 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| SLS101C12-03SP1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-253-0477 is a Spacer,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-253-0477 has 1 manufacturer part number on file: 4M231S4-03 (The Boeing Company Div Defense).
Key specifications for 4M231S4-03: Flange Outside Diameter: 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN; Body Outside Diameter: 0.2680 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM IN; Overall Length: 0.1270 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM IN; Flange Width: 0.0130 INCHES MINIMUM AND 0.0330 INCHES MAXIMUM IN. 4 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.