The Spacer,sleeve, cataloged under National Stock Number 5365-01-406-7978, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Am General Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-406-7978 |
| Primary Part Number | RCSK14875-1 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Surface Treatment Document and Classification | ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Outside Diameter | 0.6250 INCHES NOMINAL IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | ASTM A512 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A513 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.5090 INCHES NOMINAL IN |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 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 |
|---|---|
| RCSK14875-1 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 12448604-2 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| RCSK-14875-1 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5365-01-406-7978 is a Spacer,sleeve, manufactured by Am General Llc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-406-7978 has 1 manufacturer part number on file: RCSK14875-1 (Am General Llc).
Key specifications for RCSK14875-1: Corner Shape: SQUARE ALL CORNERS; Surface Treatment Document and Classification: ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Body Outside Diameter: 0.6250 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 8 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.