EN 3721:1995
Current
The latest, up-to-date edition.
Aerospace series - Nuts, bihexagonal, self-locking, deep counterbored, in heat resisting steel FE-PA92HT (A286), MoS2 coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C
19-07-1995
Foreword
1 Scope
2 Normative references
3 Required characteristics
4 Designation
5 Marking
6 Technical specification
This standard specifies the characteristics of self-locking bihexagonal nuts with deep counterbore, in FE-PA92HT, MoS2 coated, for aerospace applications. Classification: 1 100 MPa / 425 °C
| Committee |
ASD-STAN
|
| DevelopmentNote |
Supersedes PREN 3721 (11/2003)
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN EN 3721 : 1995 | Identical |
| BS EN 3721:1995 | Identical |
| NBN EN 3721 : 1995 | Identical |
| SNV DIN EN 3721 : 1995 | Identical |
| NS EN 3721 : 1ED 1995 | Identical |
| NF EN 3721 : 1995 | Identical |
| I.S. EN 3721:1996 | Identical |
| UNI EN 3721 : 1995 | Identical |
| UNE-EN 3721:1996 | Identical |
| PN EN 3721 : 2000 | Identical |
| DIN EN 3721:1995-08 | Identical |
| ISO 5855-2:1999 | Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts |
| EN 2491:2011 | Aerospace series - Molybdenum disulphide dry lubricants - Coating methods |
| ISO 4095:1998 | Aerospace — Bihexagonal drives — Wrenching configuration — Metric series |
| PREN 3752 : 200P1 | AEROSPACE SERIES - NUTS, SELF-LOCKING, MJ THREADS, IN HEAT RESISTING STEEL, FE-PA92HT (A286), MOS[2] COATED - CLASSIFICATION: 1100 MPA (AT AMBIENT TEMPERATURE)/425 DEGREES C - TECHNICAL SPECIFICATION |
| EN 2399:2008 | Aerospace series - Heat resisting steel FE-PA2601 (X4NiCrTiMoV26-15) - Rm ≥ 900 MPa - Bars for forged bolts - D ≤ 25 mm |
| EN 2424:2008 | Aerospace series - Marking of aerospace products |
| PREN 3639 : 200P1 | AEROSPACE SERIES - HEAT RESISTING ALLOY FE-PA2601 - SOFTENED AND COLD WORKED - WIRE FOR FORGED FASTENERS - D <= 15 MM - 900 MPA <= R[M] <= 1100 MPA |
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