Cross-reference: 704A33-633-211LORD (Parker LORD, FAA-PMA) = replaces Airbus Helicopters 704A33-633-211 (704A33633211, alt. ref. 57910700, NSN 5340-14-593-7512) · equivalent OEM P/N 704A33-633-208 (704A33-633-20851, NSN 5340-14-486-0520).
FAA PMA: holder Lord Corporation, Erie, PA · PMA No. PQ0466NE, Supplement 143 (09 Nov 2021).
The Parker LORD 704A33-633-211LORD is an FAA-PMA Main Rotor Spherical Bearing (Spherical Stop) engineered for Airbus light helicopters. Designed with Parker LORD's advanced SPE IIA elastomer technology, this bearing provides exceptional durability, improved fatigue resistance, and enhanced corrosion protection for demanding helicopter operations.
The bearing is approved as a FAA-PMA replacement for Airbus OEM P/N 704A33-633-211 and, according to Parker LORD, is equivalent to OEM P/N 704A33-633-208. It meets or exceeds Airbus Helicopters component repair and overhaul program requirements while helping operators reduce direct maintenance costs and aircraft downtime. The bearing is sold as a kit of three (all three are replaced at the same time).
FAA PMA data
| PMA part number |
704A33-633-211LORD |
| Approved replacement for |
Airbus Helicopters 704A33-633-211 (Stop assy, spherical – NSN 5340-14-593-7512) |
| Equivalent OEM P/N (per Parker LORD) |
704A33-633-208 / 704A33-633-20851 (NSN 5340-14-486-0520) |
| Airbus effectivity of 704A33-633-211 (Airbus technical catalog, Sep 2026) |
AS350 B, B1, B2, B3 (H125), BA, BB, D · AS355 E, F, F1, F2, N |
| Airbus effectivity of 704A33-633-20851 |
AS350 B, B1, B2, B3, BA, BB, C, D · AS355 E, F, F1, F2, N, NP · EC130 B4, T2 · SA365 C |
| Part name |
Main Rotor Spherical Bearing |
| PMA holder |
Lord Corporation – Erie, PA (USA) |
| PMA holder number |
PQ0466NE |
| Supplement |
No. 143 – 09 Nov 2021 |
| FAA approval basis |
Test and Computations per 14 CFR 21.303 – DWG 704A33-633-211LORD |
| Models on FAA supplement 143 |
AS350B, AS350B1, AS350BA, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP |
| Models listed by Parker LORD (14) |
AS350B, AS350BA, AS350B1, AS350B2, AS350B3 (H125), AS350D, EC130B4, EC130T2 (H130), AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP |
| First FAA PMA |
08 Jan 2021 (per Parker LORD) |
| EASA |
EASA STC approval received in 2025 (per Parker LORD) |
| Service life (per Parker LORD) |
AS350B/BA/B1/B2/D and AS355: 6,400 FH · H125/AS350B3 and EC130B4/T2: 4,600 FH |
| Warranty (per Parker LORD) |
5 years or 3,200 flight hours, pro-rated |
Always confirm installation eligibility for your aircraft model and serial number against the current FAA PMA supplement (FAA DRS) and your approved maintenance data.
Features
- FAA-PMA approved replacement
- Advanced SPE IIA elastomer technology
- Superior corrosion-resistant metal coatings
- Enhanced fatigue resistance and extended service life
- Maintains mechanical properties at elevated operating temperatures
- Resistant to sand, rain, oil, and environmental contaminants
- Meets or exceeds Airbus Helicopters repair and overhaul standards
- Reduces vibration and rotor component wear
- Helps lower direct operating and maintenance costs
About LORD (Parker LORD)
LORD Corporation was founded in 1924 in Erie, Pennsylvania, building on Hugh C. Lord's work bonding rubber to metal to control shock, noise and vibration. LORD supplied aircraft engine mounts from the 1940s and developed elastomeric bearings for helicopters in the 1960s, becoming one of the most recognized names in rotorcraft elastomerics – including bearings used on Bell and Airbus Helicopters rotor systems.
In October 2019 LORD was acquired by Parker Hannifin (NYSE: PH), a Fortune 250 global leader in motion and control technologies. Today its aerospace products are sold as Parker LORD, with the same LORD part numbers and engineering heritage.
Sources: Parker LORD – AS350 Main Rotor Bearing PMA · Parker LORD brochure PB8404 (PDF) · FAA DRS – PMA search · Airbus Helicopters Technical Catalog, Spare Parts and Ground Support (Ecureuil / EC 130), Sep 2026.
