The Nut,self-Locking,round, cataloged under National Stock Number 5310-00-735-6800, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-735-6800 |
| Primary Part Number | 1601157 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | MIL-P-17091,TY 1 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| Material Document and Classification | QQ-B-626 FED SPEC 1ST MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| Drive Point Width | 0.046 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Nut Diameter | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Drive Point Depth | 0.062 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.375 INCHES NOMINAL IN |
| Drive Point Quantity | 2 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | COPPER ALLOY 230 OR COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 360 OR COPPER ALLOY 377 OVERALL EXCEPT 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 |
|---|---|
| 1601157 | Naval Sea Systems Command (USA) |
| S-4271 | Nylok Llc (USA) |
| Reference | Meaning |
|---|---|
| 1601157 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| S-4271 | 5/9 Secondary reference Nylok Llc |
NSN 5310-00-735-6800 is a Nut,self-Locking,round, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-735-6800 has 2 manufacturer part numbers on file: 1601157 (Naval Sea Systems Command), S-4271 (Nylok Llc).
Key specifications for 1601157: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: MIL-P-17091,TY 1 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT; Material Document and Classification: QQ-B-626 FED SPEC 1ST MATERIAL RESPONSE OVERALL EXCEPT INSERT; Drive Point Width: 0.046 INCHES NOMINAL IN. 16 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.