The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-208-4855, 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 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-208-4855 |
| Primary Part Number | 79NC1-62 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | AMS 5640 ASSN STD ALL MATERIAL RESPONSES NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Pilot Diameter | 0.222 INCHES NOMINAL IN |
| Pilot Length | 0.063 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.251 INCHES NOMINAL IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X NUT |
| 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 |
|---|---|
| 200AS104-6B063CR | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 79NC1-62 PRIMARY | Esna, Llc (USA) |
| 203-1163P7 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| GX17112-221 | 5/9 Secondary reference Unisys Corp Defense Systems C S D Field Engineering |
| 79NC1-62 | 5/9 Secondary reference Harvard Industries Inc |
| 203-1163P7 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5310-00-208-4855 is a Nut,self-Locking,spline, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-208-4855 has 3 manufacturer part numbers on file: 200AS104-6B063CR (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 79NC1-62 (Esna, Llc), 203-1163P7 (Raytheon Company Dba Raytheon Co).
Key specifications for 79NC1-62: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES NUT; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.138 INCHES IN. 12 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.