The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-494-1771, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Precision Castparts Corp. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-494-1771 |
| Primary Part Number | C068-048-8 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Precision Castparts Corp |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.125 INCHES MAXIMUM IN |
| Nut Length | 0.791 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE BRACKET |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE SHELL |
| Thread Series | UNF |
| Plate Width | 0.500 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE BRACKET |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Nut Counterbore Depth | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.254 INCHES MINIMUM NUT IN |
| Distance From Aperture Center to Mounting Hole Center | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Nut Height | 0.710 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | CADMIUM AND CHROMATE SHELL |
| Surface Treatment | CADMIUM AND CHROMATE BRACKET |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4130 NUT |
| Material | STEEL COMP 1050 SHELL |
| 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 |
|---|---|
| C068-048-8 PRIMARY | Precision Castparts Corp (USA) |
| MF19058-4-8 | Howmet Global Fastening Systems Inc (USA) |
| C068-048-8 | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| RM52LHA3006M-8-048 | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| RM52LHA3006M-8-048 | 5/9 Secondary reference Harvard Industries Inc |
| MA13601-048-8 | 5/9 Secondary reference U.S. Government activity |
| VN253A048-8 | 5/9 Secondary reference U.S. Government activity |
| C068-048-8 | 7/2 Vendor item drawing reference U.S. Government activity |
| MA13601-0-8-8 | 5/9 Secondary reference U.S. Government activity |
| C068-048-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 5310PL0757560 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| S987DC4-8 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| VN253A048-8 | 5/9 Secondary reference Alcoa Inc. Dba Alcoa |
NSN 5310-00-494-1771 is a Nut,self-Locking,plate, manufactured by Precision Castparts Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-494-1771 has 4 manufacturer part numbers on file: C068-048-8 (Precision Castparts Corp), MF19058-4-8 (Howmet Global Fastening Systems Inc), C068-048-8 (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems), RM52LHA3006M-8-048 (Esna, Llc).
Key specifications for C068-048-8: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.125 INCHES MAXIMUM IN; Nut Length: 0.791 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NUT. 30 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.