The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-555-8664, 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 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-555-8664 |
| Primary Part Number | 09NU-5604 (MONEL) |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.500 INCHES IN |
| Thread Quantity Per Inch | 4 |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 09NU-5604 (MONEL) PRIMARY | Esna, Llc (USA) |
| 245-7284957 ITEM NO 23 | Naval Sea Systems Command (USA) |
| 245-7284957 ITEM NO 20 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7284957-20 | 5/2 Secondary reference U.S. Government activity |
| 09NU-5604 (MONEL) | 5/9 Secondary reference Harvard Industries Inc |
| 7284957-23 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-555-8664 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-555-8664 has 3 manufacturer part numbers on file: 09NU-5604 (MONEL) (Esna, Llc), 245-7284957 ITEM NO 23 (Naval Sea Systems Command), 245-7284957 ITEM NO 20 (Naval Sea Systems Command).
Key specifications for 09NU-5604 (MONEL): Thread Direction: RIGHT-HAND; Nominal Thread Size: 3.500 INCHES IN; Special Features: HEAVY HEXAGON NYLON INSERT SELF LOCKING MADE FROM MONEL; Part Name Assigned by Controlling Agency: NUT, SELF LOCKING HEXAGON. 4 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.