The Nut,plain,plate, cataloged under National Stock Number 5310-00-498-6340, 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 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-498-6340 |
| Primary Part Number | MF19650-3 |
| Item Name | Nut,plain,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN |
| Nut Length | 0.739 INCHES MAXIMUM0.739 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNFUNF |
| Plate Width | 0.327 INCHES MAXIMUM0.327 INCHES MAXIMUM IN |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL500.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES2 HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM0.103 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUTFLOATING NUT |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES0.190 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN |
| Center to Center Distance Between Mounting Holes Along Length | 0.498 INCHES MINIMUM AND 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM0.502 INCHES MAXIMUM IN |
| Nut Height | 0.250 INCHES MAXIMUM0.250 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | PLATEPLATE |
| Thread Class | 3B3B |
| Thread Quantity Per Inch | 3232 |
| Material | STEEL OVERALL |
| Nut Mounting Provision | STRAIGHT HOLESSTRAIGHT HOLES |
| 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 |
|---|---|
| MF19650-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 943959-5 | 7/2 Vendor item drawing reference U.S. Government activity |
| MF19650-3 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc. Div Microdot Products |
NSN 5310-00-498-6340 is a Nut,plain,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-498-6340 has 1 manufacturer part number on file: MF19650-3 (Howmet Global Fastening Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-193-4837. Verify interchangeability with system specifications before substitution.
Key specifications for MF19650-3: Plate Thickness: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN; Nut Length: 0.739 INCHES MAXIMUM0.739 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNFUNF. 20 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.