The Nut,plain,plate, cataloged under National Stock Number 5310-01-486-1335, 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 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-486-1335 |
| Primary Part Number | MF54343-4 |
| Item Name | Nut,plain,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.035 INCHES MAXIMUM IN |
| Nut Length | 0.617 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.236 INCHES MINIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.502 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5737 ASSN STD 3RD MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.062 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.300 INCHES MAXIMUM SHELL IN |
| Nut Height | 0.281 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE SHELL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 SHELL |
| Material | IRON ALLOY 660 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 |
|---|---|
| MF54343-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST5032-10 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST5030-10 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| ST5033-10 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| NS203217-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-486-1335 is a Nut,plain,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-486-1335 has 3 manufacturer part numbers on file: MF54343-4 (Howmet Global Fastening Systems Inc), ST5032-10 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST5030-10 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for MF54343-4: Plate Thickness: 0.035 INCHES MAXIMUM IN; Nut Length: 0.617 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.236 INCHES MINIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 19 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.