The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-648-1225, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-648-1225 |
| Primary Part Number | 58C |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation |
| Status | ACTIVE |
| Nominal Thread Size | 0.625 INCHES IN |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 1035 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-648-1225 is a Nut,self-Locking,extended Washer, manufactured by Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-648-1225 has 2 manufacturer part numbers on file: 58C (Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation), F10110M (Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation).
Key specifications for 58C: Nominal Thread Size: 0.625 INCHES IN; Surface Treatment: CHROMATE ZINC OVERALL; Nut Style: HEXAGON; End Item Identification: R19TM900GPMFL. 5 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.