The Nut,plain,cap, cataloged under National Stock Number 5310-00-273-6680, 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 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-273-6680 |
| Primary Part Number | CADD263A |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-B-637 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Departure From Cited Designator | AS MODIFIED BY DIMENSIONS |
| Nondefinitive Spec/std Data | 3 TYPE AND 14 STYLE |
| Nut Height | 0.875 INCHES NOMINAL IN |
| Nut Style | CAP |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL |
| Bearing Surface Type | CHAMFERED OR 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 |
|---|---|
| CADD263A PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| CADD263A | 3/9 Design control — primary reference U.S. Government activity |
| 15AD7D1FPC37 | 5/9 Secondary reference U.S. Government activity |
| ADD263A | 5/9 Secondary reference U.S. Government activity |
| ADC263A | 5/9 Secondary reference U.S. Government activity |
| 13AD6D1APC37 | 5/9 Secondary reference U.S. Government activity |
| MAD3D1APC37 | 5/9 Secondary reference U.S. Government activity |
| 10AD3E1APC37 | 5/9 Secondary reference U.S. Government activity |
| 7AD6D1APC37 | 5/9 Secondary reference U.S. Government activity |
| MADD1BPC37 | 5/9 Secondary reference U.S. Government activity |
| MADG4018DPC15 | 5/9 Secondary reference U.S. Government activity |
| 10AD3E1FPC37 | 5/9 Secondary reference U.S. Government activity |
| 15AD3D1APC37 | 5/9 Secondary reference U.S. Government activity |
| 7AD6D1FPC37 | 5/9 Secondary reference U.S. Government activity |
| 13AD6D1FPC37 | 5/9 Secondary reference U.S. Government activity |
| 15AD7D1APC37 | 5/9 Secondary reference U.S. Government activity |
| A3DE263A | 5/9 Secondary reference U.S. Government activity |
| MADG4018APC15 | 5/9 Secondary reference U.S. Government activity |
| FFN836 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-273-6680 is a Nut,plain,cap, manufactured by Fairbanks Morse, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-273-6680 has 1 manufacturer part number on file: CADD263A (Fairbanks Morse, Llc).
Key specifications for CADD263A: Width Across Flats: 0.625 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: QQ-B-637 FED SPEC ALL MATERIAL RESPONSES 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.