The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-00-968-3118, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-968-3118 |
| Primary Part Number | H52300-4 |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.426 INCHES NOMINAL IN |
| Width Across Flats | 0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Washer Thickness | 0.079 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Ball Seat Radius | 0.265 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL 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 |
|---|---|
| H52300-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| GN510AE4L | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 74048M-4 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| H29263P4 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| RM52LH4367-048 | 5/9 Secondary reference Harvard Industries Inc |
| 74048M-428 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| GN510AE4L | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| H29263P4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-00-968-3118 is a Nut,self-Locking,single Ball Sea, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-968-3118 has 2 manufacturer part numbers on file: H52300-4 (Howmet Global Fastening Systems Inc), GN510AE4L (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for H52300-4: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.299 INCHES NOMINAL IN; Washer Outside Diameter: 0.426 INCHES NOMINAL IN; Width Across Flats: 0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN. 15 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.