The Shim, cataloged under National Stock Number 5365-01-441-0591, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Anillo Industries Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Shim |
| FSC / FSG | 5365 — Bushings, Rings, Shims, and Spacers (FSG 53) |
| Manufacturers | Anillo Industries Llc (CAGE 10630); Moeller Manufacturing & Supply, Llc (CAGE 58009) |
| Parameter | Value |
|---|---|
| NSN | 5365-01-441-0591 |
| Primary Part Number | S2431221-6A10H |
| Item Name | Shim |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Anillo Industries Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| S2431221-6A10H PRIMARY | Anillo Industries Llc (USA) |
| S2431221-6A10H PRIMARY | Moeller Manufacturing & Supply, Llc (USA) |
| Reference | Meaning |
|---|---|
| S2431221 | D/9 Drawing number reference only U.S. Government activity |
| S2431221-6A10H | 5/2 Secondary reference U.S. Government activity |
NSN 5365-01-441-0591 is a Shim, manufactured by Anillo Industries Llc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-441-0591 has 2 manufacturer part numbers on file: S2431221-6A10H (Anillo Industries Llc), S2431221-6A10H (Moeller Manufacturing & Supply, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-469-0467. Verify interchangeability with system specifications before substitution.
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.