The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-281-5357, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-281-5357 |
| Primary Part Number | MAD7G603APC28 |
| Item Name | Nut,plain,slotted,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-639 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OR QQ-B-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Height | 0.688 INCHES NOMINAL IN |
| Nut Style | SLOTTED, HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 11 |
| Material | COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| MAD7G603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 10AD3E603DPC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 15AD7D603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 13AD6D603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| MAD3G603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 15AD7D603EPC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 7AD6D603CPC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| MAD6G603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| MADG603EPC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| ADD4626B PRIMARY | Fairbanks Morse, Llc (USA) |
| 13AD6D603FPC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 10AD3E603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| 7AD6D603APC28 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| MAD6G603APC28 | 5/9 Secondary reference U.S. Government activity |
| 10AD3E603APC28 | 5/9 Secondary reference U.S. Government activity |
| MAD3G603APC28 | 5/9 Secondary reference U.S. Government activity |
| 10AD3E603DPC28 | 5/9 Secondary reference U.S. Government activity |
| MAD7G603APC28 | 5/9 Secondary reference U.S. Government activity |
| 13AD6D603APC28 | 5/9 Secondary reference U.S. Government activity |
| 7AD6D603CPC28 | 5/9 Secondary reference U.S. Government activity |
| 13AD6D603FPC28 | 5/9 Secondary reference U.S. Government activity |
| ADD4626B | 3/9 Design control — primary reference U.S. Government activity |
| 15AD7D603APC28 | 5/9 Secondary reference U.S. Government activity |
| 7AD6D603APC28 | 5/9 Secondary reference U.S. Government activity |
| 15AD7D603EPC28 | 5/9 Secondary reference U.S. Government activity |
| MADG603EPC28 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-281-5357 is a Nut,plain,slotted,hexagon, manufactured by Fairbanks Morse, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-281-5357 has 13 manufacturer part numbers on file: MAD7G603APC28 (Fairbanks Morse, Llc), 10AD3E603DPC28 (Fairbanks Morse, Llc), 15AD7D603APC28 (Fairbanks Morse, Llc), 13AD6D603APC28 (Fairbanks Morse, Llc), MAD3G603APC28 (Fairbanks Morse, Llc) and 8 more.
Key specifications for MAD7G603APC28: Width Across Flats: 1.000 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-639 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OR QQ-B-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 11 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.