HK-3
Lens hood for Nikon Nikkor 20mm f and 4
Original part (OEM)
Not checked yet
PorkForge replacement
Not made yet
Part facts
- Original part number
- HK-3R1
- Manufacturer
- Nikon
- System
- Body and sheet metal
- Material
- metalR1
- Notes
- Metal hood for the Nikkor 20mm f/4. No size or price data at the dealer; out of stock. The maker stopped making this system long ago (inferred); OEM availability was not checked.
- Last reviewed
- Oct 28, 2026 · record pf-cam-00022
Dimensions How to measure this part
Fits these machines
| Model | Years | Notes | Evidence |
|---|---|---|---|
| Nikon Nikkor 20mm f | Not recorded | — | Reported 1 |
| Nikon 4 | Not recorded | — | Reported 1 |
Where to find one today
| Source | Condition | Price | Stock | Checked |
|---|---|---|---|---|
| Kamerastore (used camera dealer, Finland) 1 | Used | — | Out of stock | Oct 28, 2026 |
Why it is hard to get
- Market evidence: Out of stock at a large used-camera dealer on 28 Oct 2026; the item is only available used. 1
Can this part be made again?
EligiblePhysical replacement
Lens hood or cap: not structural, hot, electrical or safety-critical. The bayonet or clip features need accurate geometry.
Candidate materials: PETG, ASA (confirmed by test-fitting).
EligibleSTL / FreeCAD file
Can be offered as a printable file and an editable FreeCAD model once the measurements are verified.
Sources
Not affiliated with or endorsed by Nikon or its successors. The name is used only to identify compatibility. Part numbers are shown for reference. Check fit against your own machine. Spot a mistake?
Verification checklist (2 of 8 met)
- ✕ OEM part number not yet verified from an OEM or dealer source
- ✕ Cited by one website only, and not an OEM or dealer source
- ✓ At least one compatible model with a source
- ✕ 1 kinds of fact beyond the name (material); 3 needed
- ✕ Original availability not yet checked
- ✓ Text and title are distinct
- ✕ On hold: Sourced from Kamerastore; its terms for automated use are not yet checked
- ✕ Not yet reviewed and signed off for search
Related parts
| Part no. | Part | Make | Fits | Original | PorkForge | Sources |
|---|---|---|---|---|---|---|
| 70234433 | Instrument panel trim (D15, D17, D19) | Allis-Chalmers | D15, D17, D19 | Not checked | Research only | 2 |
| BS-52 | Lens hood | Canon | FD 50mm f, 1.4, 1.8 | Not checked | Research only | 1 |
| BS-55 | Lens hood | Canon | FD 50mm f, 1.4 S.S.C., 1.8 S.C. | Not checked | Research only | 1 |
| BS-58 | Lens hood | Canon | FD 55mm f, 1.2 S.S.C., FD 50-135mm | Not checked | Research only | 1 |
| BT-52 | Telephoto lens hood | Canon | FD 85mm f, 1.8, FD 100mm f, 2, 2.8 +1 more | Not checked | Research only | 1 |
| BT-55 | Telephoto lens hood | Canon | FD 85mm f, 1.8, FD 100mm f, 2.8, FD 135mm f +1 more | Not checked | Research only | 1 |
| BW-52B | Wide-angle lens hood | Canon | FD 28mm f, 2.8, 2 | Not checked | Research only | 1 |
| BW-55A | Wide-angle lens hood | Canon | FD 35mm f, 2 S.S.C., 3.5 S.C. | Not checked | Research only | 1 |