Part Details
Part number MS21042-04 (Reduced Self-Locking Nut, 0.112 to 0.142 in Dia, #4-40, UNC-3B, Steel) is listed under Misc (Hardware). Order online at the listed price, or call, text or WhatsApp +1 (954) 493-5088 for quantity pricing. Ask about certification and release documents (such as an FAA 8130-3) when you order.
| Part Number | MS21042-04 |
|---|
| Description | Reduced Self-Locking Nut, 0.112 to 0.142 in Dia, #4-40, UNC-3B, Steel |
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| Category | Misc (Hardware) |
|---|
| Ships From | Fort Lauderdale, Florida, USA, to 110+ countries and territories |
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Aviation Parts Executive is an ASA-100 accredited aircraft parts distributor (FAA AC 00-56) in Fort Lauderdale, Florida, supplying aircraft parts since 1998.
Alternate Part Numbers
Part number MS21042-04 has 5 known alternate, superseded or replacement part numbers. Search any of them, or call, text or WhatsApp +1 (954) 493-5088 for availability.
| Part Number | Manufacturer | Relationship | Notes |
|---|
| MS21042L04 | Robinson | Interchangeable | |
| AN365-440 | | Interchangeable | |
| MS20365-440 | Standard Hardware (AN/MS/NAS) | Interchangeable | |
| MS21044N04 | | Interchangeable | |
| NAS1291X04 | Standard Hardware (AN/MS/NAS) | Interchangeable | |
Alternate and superseded part numbers are listed for reference from FAA PMA data, manufacturer cross-references and illustrated parts catalogs. Always confirm eligibility for your aircraft, engine and serial number before installation.
TECHNICAL INFORMATION
• FAA-STD Approved
• MIL-S-8879 Qualified
• QQ-P-416 Type 2 Class 2
SPECIFICATIONS
• Diameter: 0.112 to 0.142 in
• Dash Number: 4
• Thread Direction: Right Hand
• Width Across Flat: 0.15 to 0.158 in
• Height: 0.103 to 1/8 in
• Nut Type: Hexagonal
• Material: Steel
• Thread Size: #4-40
• Finish: Cadmium
• Thread Type: UNC-3B
• Temperature Rating: 450 deg F
• Domestic/Import: Domestic
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