The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-421-7869, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Drager Safety Ag & Co. Kgaa. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-421-7869 |
| Primary Part Number | E20366 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Drager Safety Ag & Co. Kgaa |
| Status | ACTIVE |
| Width Across Flats | 0.344 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | ECLIPSALLOY TEMPER 49T MFR REF 1ST MATERIAL RESPONSE OR QQ-A-225/6 TEMPER T4 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Height | 0.094 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | ALUMINUM ALLOY OR ALUMINUM ALLOY 2024 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| E20366 | Drager Safety Ag & Co. Kgaa (DEU) |
| Reference | Meaning |
|---|---|
| 814045 | 3/2 Design control — primary reference U.S. Government activity |
| E20366 | 5/9 Secondary reference B/e Aerospace Systems Gmbh Div Life Support Systems Europe |
NSN 5310-00-421-7869 is a Nut,plain,hexagon, manufactured by Drager Safety Ag & Co. Kgaa, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-421-7869 has 1 manufacturer part number on file: E20366 (Drager Safety Ag & Co. Kgaa).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-176-3422, 5365-01-368-7284. Verify interchangeability with system specifications before substitution.
Key specifications for E20366: Width Across Flats: 0.344 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: ECLIPSALLOY TEMPER 49T MFR REF 1ST MATERIAL RESPONSE OR QQ-A-225/6 TEMPER T4 FED SPEC 2ND MATERIAL RESPONSE OVERALL; 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.