The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-732-5403, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-732-5403 |
| Primary Part Number | ISO7040-M4-8-ZN5/FN |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Width Across Flats | 6.78 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Thread Series | M |
| Thread Pitch in Millimeters | 0.7 |
| Material Document and Classification | UNABLE TO DECODE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Specification/standard Data | I9008-ISO 7040 INTERNATIONAL STD/SPEC |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 5.52 MILLIMETERS MINIMUM AND 6.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | UNABLE TO DECODE |
| Nut Style | HEXAGON |
| Thread Class | 6H |
| Material | UNABLE TO DECODE |
| 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 |
|---|---|
| ISO7040-M4-8-ZN5/FN PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5310-01-732-5403 is a Nut,self-Locking,hexagon, manufactured by International Organization for Standardization (iso), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-732-5403 has 1 manufacturer part number on file: ISO7040-M4-8-ZN5/FN (International Organization for Standardization (iso)).
Key specifications for ISO7040-M4-8-ZN5/FN: Width Across Flats: 6.78 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: UNABLE TO DECODE; Thread Series: M; Thread Pitch in Millimeters: 0.7. 15 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.