The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-616-8329, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-616-8329 |
| Primary Part Number | 52NTE126 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.053 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Material Document and Classification | AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.391 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 1137 NUT |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 52NTE126 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 26763 | 5/9 Secondary reference Harvard Industries Inc |
| 52NTE126 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-616-8329 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-616-8329 has 1 manufacturer part number on file: 52NTE126 (Esna, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 3020-01-171-2128, 5120-01-503-1870, 3655-01-601-2119. Verify interchangeability with system specifications before substitution.
Key specifications for 52NTE126: Width Across Flats: 1.053 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN; Thread Series: UNF; Material Document and Classification: AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE NUT; Thread Direction: RIGHT-HAND. 14 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.