The Spacer,plate, cataloged under National Stock Number 5365-01-415-1981, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-415-1981 |
| Primary Part Number | 1220B1284-3 |
| Item Name | Spacer,plate |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Smallest Bolt Hole Quantity | 4 |
| Overall Thickness | 0.125 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Smallest Bolt Hole Diameter | 0.406 INCHES NOMINAL IN |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Aperture Diameter | 2.002 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.850 INCHES NOMINAL IN |
| Largest Bolt Hole Diameter | 0.531 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 400 |
| 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 |
|---|---|
| 1220B1284-3 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1220B1284-3 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 5365-01-415-1981 is a Spacer,plate, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-415-1981 has 1 manufacturer part number on file: 1220B1284-3 (Lockheed Martin Corporation Div Rms).
Key specifications for 1220B1284-3: Smallest Bolt Hole Quantity: 4; Overall Thickness: 0.125 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE. 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.