The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-00-271-9100, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-271-9100 |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 10.000 MILLIMETERS NOMINAL MM |
| Temp Rating | -130.0 FAHRENHEIT MINIMUM AND 480.0 FAHRENHEIT MAXIMUM DEGF |
| Thread Pitch Diameters | +4.9175 TO 5.3505 MILLIMETERS MM |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 6.000 MILLIMETERS NOMINAL MM |
| Surface Treatment | CADMIUM OVERALL EXCEPT INSERT |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Material | STEEL NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| DIN985 | 3/1 Design control — primary reference Metric and Multistandard Components Corp |
NSN 5310-00-271-9100 is a Nut,self-Locking,single Ball Sea, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-211-4856, 5310-01-343-1769. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-271-9100: Width Across Flats: 10.000 MILLIMETERS NOMINAL MM; Temp Rating: -130.0 FAHRENHEIT MINIMUM AND 480.0 FAHRENHEIT MAXIMUM DEGF; Thread Pitch Diameters: +4.9175 TO 5.3505 MILLIMETERS MM; Thread Direction: RIGHT-HAND. 10 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.