The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-985-4707, 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 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-985-4707 |
| Primary Part Number | MK7200-3 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Thread Series | UNF |
| Temp Rating | 288.0 CELSIUS NOMINAL DEGC |
| Nut Counterbore Depth | 0.040 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.312 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.190 INCHES MINIMUM NUT IN |
| Pilot Diameter | 0.249 INCHES MAXIMUM IN |
| Pilot Length | 0.040 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.200 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| MK7200-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 765722 | Air Armament Center/ En (USA) |
| Reference | Meaning |
|---|---|
| 10121918 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 291AS293-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| MK7200-03 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 928C389P5 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-00-985-4707 is a Nut,self-Locking,clinch, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-985-4707 has 2 manufacturer part numbers on file: MK7200-3 (Howmet Global Fastening Systems Inc), 765722 (Air Armament Center/ En).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-178-6671. Verify interchangeability with system specifications before substitution.
Key specifications for MK7200-3: Lubrication: DRY FILM LUBRICANT; Thread Series: UNF; Temp Rating: 288.0 CELSIUS NOMINAL DEGC; Nut Counterbore Depth: 0.040 INCHES MAXIMUM NUT IN. 17 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.