The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-522-9665, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Thales Nederland, Huizen. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-522-9665 |
| Primary Part Number | 12NC4284-1-40 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Thales Nederland, Huizen |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Series | UNJC |
| Temp Rating | 350.0 FAHRENHEIT NOMINAL DEGF |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.300 INCHES NOMINAL IN |
| Pilot Diameter | 0.222 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Pilot Length | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.169 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL EXCEPT INSERT |
| Nut Style | SPLINE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL EXCEPT INSERT |
| Material | PLASTIC 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 |
| Part Number | Manufacturer |
|---|---|
| 12NC4284-1-40 | Thales Nederland, Huizen (NLD) |
| Reference | Meaning |
|---|---|
| 12NC4284-1-40 | 3/9 Design control — primary reference Esna, Llc |
| 12NC4284-1-40 | 5/9 Secondary reference Harvard Industries Inc |
| 1563503 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-522-9665 is a Nut,self-Locking,spline, manufactured by Thales Nederland, Huizen, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-522-9665 has 1 manufacturer part number on file: 12NC4284-1-40 (Thales Nederland, Huizen).
Key specifications for 12NC4284-1-40: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT; Thread Series: UNJC; Temp Rating: 350.0 FAHRENHEIT NOMINAL DEGF; Features Provided: FLOATING NUT. 17 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.