



Adaptaflex ASF21/M20/A/BL Adaptaseal Black Nylon Type A Straight Fitting With Fixed External Thread & Locknut IP69K M20 21mm
ASF21/M20/A/BL
Range Options
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ASF21/M20/A/BL | 21mm Dia, Fixed, IP69K | £2.96 £2.47 |
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ASF28/M25/A/BL | 28mm Dia, Fixed, IP69K | £3.93 £3.28 |
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Adaptaflex ASF21/M20/A/BL Adaptaseal Straight Fitting – IP69K Rated, Black Nylon with Fixed M20 Thread & Locknut
The Adaptaflex ASF21/M20/A/BL Adaptaseal is a Type A straight fitting designed for high-integrity sealing in demanding environments. Manufactured from Polyamide 66, it features a rubber conduit seal and a retained O-ring for reliable installation into threaded entries and knockouts—offering exceptional ingress protection to IP69K standard.
- High-Spec Sealing: Supplied with integrated rubber conduit seal and face O-ring for maximum environmental protection.
- Robust Nylon Build: Made from durable PA66 for strength, flexibility, and resistance to corrosion.
- IP69K Ingress Protection: Ensures the highest level of protection against water, dust, and high-pressure cleaning.
- Complete Assembly: Includes adaptor body, compression cap-nut, and pre-installed locknut for quick, secure fitting.
- Non-Metallic Advantage: Lightweight, rustproof, and easy to handle—ideal for harsh or hygiene-critical settings.
Technical Specification
- Thread Size: M20
- Conduit Size: 21mm (Type A)
- Material: Polyamide (Nylon) 66
- Fitting Type: Straight with fixed external thread
- Ingress Protection: IP69K
✅ Choose the Adaptaflex ASF21/M20/A/BL for superior ingress protection and fast, corrosion-free cable terminations in critical environments!

Ean Code | 5020963010750 |
Range | Adaptaflex Adaptaseal |
Thread Standard | Male |
Flameproof Rating | Self-extinguishing |
Product | Flexible Conduit Connectors |
Type | Fixed |
Ingress Protection | IP67 |
Colour | Black |
Diameter | 21 mm |
Length | 39.2 mm |
Unit Weight | 0.013605 kg |
Material | Nylon |
Standards | BSI Kitemark KM-35161 BS EN 61386-1 & 23 NFF16-101 I4 F2 ISO 4589-2 BS EN 60695-2-11 UL94 V2 BS EN IEC 61386-1:2008 BS EN IEC 61386-23:2004+A11:2010 EN60423 BS3643 |
Qualifier | Type A for Type PA/CP/PR/PF |
Ce Approved | Y |
Fixings Included | N |
Nominal Width | 21 mm |
Nominal Width B | 20 mm |
Fixing Type | Screw Fix |
Angle | Straight |
Normal Operating Minimum Temperature | Static -40/Moving -5 Degrees C |
Normal Operating Maximum Temperature | Static 120/Moving 120 Degrees C |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.