The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-988-6773, 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 11 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-988-6773 |
| Primary Part Number | HW42-08 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Width Across Flats | 0.189 INCHES MAXIMUM IN |
| Thread Series | UN |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.194 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| HW42-08 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 219233 | Woodward, Inc. Div Fuel Systems and Controls (USA) |
| 860127-24 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| HW42-08 | Satair A/s (DNK) |
| 2110596 | Embraer S.a. (BRA) |
| Reference | Meaning |
|---|---|
| HW42-08 | C/1 Advisory reference — outside the item-of-supply concept Boeing Distribution Services SAS |
| HW42-08 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| HW42-08 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| 860127-24 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 2110596 | 5/9 Secondary reference Embraer Empresa Brasileira De Aeronautica Sa |
| HW42-08 | 5/9 Secondary reference Tecnotec Sarl |
NSN 5310-00-988-6773 is a Nut,self-Locking,hexagon, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-988-6773 has 5 manufacturer part numbers on file: HW42-08 (Howmet Global Fastening Systems Inc), 219233 (Woodward, Inc. Div Fuel Systems and Controls), 860127-24 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), HW42-08 (Satair A/s), 2110596 (Embraer S.a.).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-198-1722, 5310-01-349-6108. Verify interchangeability with system specifications before substitution.
Key specifications for HW42-08: Width Across Flats: 0.189 INCHES MAXIMUM IN; Thread Series: UN; Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF; Thread Direction: RIGHT-HAND. 11 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.