The Spacer,sleeve, cataloged under National Stock Number 5365-01-211-3148, 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 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-211-3148 |
| Primary Part Number | 1210C1477 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Interior Flange Hole Diameter | 0.5150 INCHES NOMINAL IN |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | ROUND RIGHT FLANGE BODY CORNER |
| Corner Shape | SQUARE RIGHT FLANGE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | ROUND LEFT FLANGE BODY CORNER |
| Surface Treatment Document and Classification | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Right Flange Width | 0.1900 INCHES NOMINAL IN |
| Body Outside Diameter | 1.3800 INCHES NOMINAL IN |
| Style Designator | SOLID, EXTERNAL FLANGES BOTH ENDS, INTERIOR FLANGE(S) NOT LOCATED AT EITHER END |
| Material Document and Classification | QQ-A-225/8,TEMPER T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Interior Flange Left End to Centerline Distance | 0.6250 INCHES NOMINAL IN |
| Interior Flange Width | 0.2500 INCHES NOMINAL IN |
| Body Inside Diameter | 1.0000 INCHES NOMINAL IN |
| Right Flange Outside Diameter | 2.3750 INCHES NOMINAL IN |
| Left Flange Outside Diameter | 2.3750 INCHES NOMINAL IN |
| Left Flange Width | 0.1900 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE OVERALL |
| Material | ALUMINUM ALLOY 6061 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 |
|---|---|
| 1210C1477 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 1213C1481 FIND 3 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1213C1481 FIND 3 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1210C1477 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 5365-01-211-3148 is a Spacer,sleeve, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-211-3148 has 2 manufacturer part numbers on file: 1210C1477 (Lockheed Martin Corporation Div Rms), 1213C1481 FIND 3 (Lockheed Martin Corporation Div Rms).
Key specifications for 1210C1477: Interior Flange Hole Diameter: 0.5150 INCHES NOMINAL IN; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER. 22 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.