The Nut,plain,round, cataloged under National Stock Number 5310-01-528-7221, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cfm International Inc Dba Cfm International. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-528-7221 |
| Primary Part Number | SL61NM-035-10FSP |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cfm International Inc Dba Cfm International |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | LEFT-HAND |
| Nut Style | ROUND |
| Material | STEEL COMP 4130 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 |
|---|---|
| SL61NM-035-10FSP | Cfm International Inc Dba Cfm International (USA) |
| SL61NM-035-10FSP | Shur-Lok International (BEL) |
| Reference | Meaning |
|---|---|
| SL61NM-035-10FSP | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-528-7221 is a Nut,plain,round, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-528-7221 has 2 manufacturer part numbers on file: SL61NM-035-10FSP (Cfm International Inc Dba Cfm International), SL61NM-035-10FSP (Shur-Lok International).
Key specifications for SL61NM-035-10FSP: Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: LEFT-HAND; Nut Style: ROUND; Material: STEEL COMP 4130 OVERALL. 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.