The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-902-7798, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-902-7798 |
| Primary Part Number | AS5178A-03 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-764,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,CLASS 347,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Specification/standard Data | 81343 - 81343-AMS-T-7081 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Nut Height | 0.218 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 304 OR STEEL COMP 347 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| AS5178A-03 PRIMARY | Sae International Dba Sae International (USA) |
| AS5178R03 PRIMARY | Sae International Dba Sae International (USA) |
| AS4841 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS24400S3 | 5/9 Secondary reference U.S. Government activity |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AN924-3S | 5/9 Secondary reference U.S. Government activity |
| AS5178A-03 | 3/9 Design control — primary reference U.S. Government activity |
| AS5178R03 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-902-7798 is a Nut,plain,hexagon, manufactured by Sae International Dba Sae International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-902-7798 has 3 manufacturer part numbers on file: AS5178A-03 (Sae International Dba Sae International), AS5178R03 (Sae International Dba Sae International), AS4841 (Sae International Dba Sae International).
Key specifications for AS5178A-03: Width Across Flats: 0.625 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: QQ-S-764,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,CLASS 347,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 13 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.