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Airfasco
RX1-MS21042-02
MS21042-02 Nut (NAS1291-02)
1.92 EUR/EA
Excluding VAT
Availability
Up to 37 EA ready to ship on Thursday 2026-11-12Order before 16:00 CET Today
22 EA available on request, inbound freight fee of 60 EUR appliesSpecial order from vendor stock.
Part numbers
- Roctexo
- RX1-MS21042-02
- NSN
- 5310-00-058-1823
- Manufacturer
- 123645-1
- Manufacturer / Vendor
- MS21042-02
Product details
The Airfasco MS21042-02 is a self-locking, reduced-height hex nut with a ring base. Also referenced as NAS1291-02, it is intended for aerospace fastening applications where the applicable design and maintenance data specifies this part number.
- Manufacturer part numbers: MS21042-02 and 123645-1
- Thread: 0.0860-56 UNJC-3B
- Alloy-steel construction with cadmium plating in accordance with AMS-QQ-P-416, Type II, Class 2
- Self-locking design with reduced hexagon and reduced-height profile
- Maximum outside diameter: 4.2 mm
- Overall height: 2.0 to 2.5 mm
- Width across flats: 3.1 to 3.2 mm
Airfasco identifies the MS21042 series for weight-saving, thin-wall applications and notes that inspection and use must remain within the limitations of NASM33588. Verify part-number conformity, installation requirements, and approved maintenance data before use.
Relevant manufacturer documentation: MS21042 reference drawing and MS33588 limitations of use.
| Condition | NEW |
|---|---|
| Packaged Amount | INQUIRE |
| Ref Pc Weight (lb) | 0.00020 |
| Unit Of Measure | EA |